www.cdc.gov: Accessibility — week 2026-W40

Automated Accessibility Conformance Report (OpenACR): Download ACR. Machine-readable; compatible with GSA OpenACR tooling. Automated tools find ~⅓ of real barriers — supplement with manual AT testing.

Training priorities

Top WCAG success criteria by pages affected this week. Use these to focus team training on the highest-impact issues.

SC	Criterion	Pages	Rules
1.4.3	Contrast (Minimum)	463	2
3.1.1	Language of Page	425	2
1.1.1	Non-text Content (images, icons)	423	2
2.5.5	WCAG 2.5.5	416	1
1.4.6	WCAG 1.4.6	355	1

Next 10 actions

Clusters are fingerprinted by normalized selector path + rule id + snippet shape. Rank score = (severity weight × pages affected) / distinct components for the rule. This supersedes the template threshold heuristic while still surfacing it as a validation signal.

Top 10 clustered component fixes for this week.
Cluster	Severity	Pages	Who it affects	How to fix	Evidence	Decision
<html> element must have a lang attribute · unattributed component Fix one place, resolve ~340 finding(s) on 340 page(s). XPath / selector: `html` `<html>`	Serious	340	Without vision, Limited cognitive, language, or learning ability	Add a lang attribute to <html> (e.g. lang="en").	pages (CSV)	Decision Assigned to Notes
Document should have one main landmark · unattributed component Fix one place, resolve ~362 finding(s) on 362 page(s). XPath / selector: `html` `<html>`	Moderate	362	Requires manual testing.	Each page should have exactly one <main> landmark.	pages (CSV)	Decision Assigned to Notes
Page should contain a level-one heading · unattributed component Fix one place, resolve ~152 finding(s) on 152 page(s). XPath / selector: `html` `<html lang="en-us" class="cdc-theme-cdc cdc-root-home cdc-page-type--2024home">`	Moderate	152	Requires manual testing.	See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/page-has-heading-one?application=axeAPI	pages (CSV)	Decision Assigned to Notes
Form elements should have a visible label · unattributed component Fix one place, resolve ~95 finding(s) on 95 page(s). XPath / selector: `.smallfield` `<input class="smallfield" type="text" name="email" size="15" title="插入电子邮件" value="插入电子邮件" onfocus="this.value=''">`	Serious	95	Requires manual testing.	See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/label-title-only?application=axeAPI	pages (CSV)	Decision Assigned to Notes
Contentinfo landmark should not be contained in another landmark · unattributed component Fix one place, resolve ~93 finding(s) on 93 page(s). XPath / selector: `.cdc-footer > footer` `<footer>`	Moderate	93	Requires manual testing.	See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-contentinfo-is-top-level?application=axeAPI	pages (CSV)	Decision Assigned to Notes
Document should not have more than one banner landmark · unattributed component Fix one place, resolve ~93 finding(s) on 93 page(s). XPath / selector: `.cdc-header` `<header class="container cdc-header">`	Moderate	93	Requires manual testing.	Use only one banner landmark (<header> at the top level) per page.	pages (CSV)	Decision Assigned to Notes
Document should not have more than one contentinfo landmark · unattributed component Fix one place, resolve ~93 finding(s) on 93 page(s). XPath / selector: `.cdc-footer` `<footer class="container cdc-footer noindex" role="contentinfo">`	Moderate	93	Requires manual testing.	Use only one contentinfo landmark (<footer> at the top level) per page.	pages (CSV)	Decision Assigned to Notes
Document has a valid lang attribute · unattributed component Fix one place, resolve ~85 finding(s) on 85 page(s). XPath / selector: `<html>`	Moderate	85	Without vision, Limited cognitive, language, or learning ability	Add a valid lang attribute to <html>.	pages (CSV)	Decision Assigned to Notes
Elements should not have tabindex greater than zero · unattributed component Fix one place, resolve ~93 finding(s) on 93 page(s). XPath / selector: `a[href$="#content"]` `<a class="skippy visually-hidden-focusable" href="#content" tabindex="1">Skip to site content</a>`	Serious	93	Requires manual testing.	Avoid tabindex values greater than 0; they create a confusing tab order.	pages (CSV)	Decision Assigned to Notes
Elements should not have tabindex greater than zero · unattributed component Fix one place, resolve ~93 finding(s) on 93 page(s). XPath / selector: `a[href$="#headerSearch"]` `<a class="skippy visually-hidden-focusable" href="#headerSearch" tabindex="2">Skip to search</a>`	Serious	93	Requires manual testing.	Avoid tabindex values greater than 0; they create a confusing tab order.	pages (CSV)	Decision Assigned to Notes

Bug reports

30 issue type(s) are shown by default out of 78 total. Prioritized by severity, key pages, WCAG level, and prevalence; use the toggle to show everything.

Overall severity mix: 5 critical, 17 serious, 51 moderate, 5 minor. By WCAG category: 30 WCAG 2.0 A, 2 WCAG 2.0 AA, 1 WCAG 2.1 A, 1 WCAG 2.2 AA, 5 WCAG 2.x AAA, 19 Best Practice, 20 Undetermined. Ordered by severity, key-page impact, WCAG level, and prevalence. Following accessibility bug-reporting best practices. Download: Markdown · JSON (full archive) · JSON (AI diagnostic) · CSV (all findings) · Priority pages CSV · Priority pages JSON.

Automated testing does not establish full WCAG conformance. Findings in the verification lane require manual testing before they are treated as confirmed failures.

The 50 highest-priority findings are shown in full; 28 more lower-priority finding(s) are summarised at the end of the page, and every finding is in the CSV/JSON downloads.

5 finding(s) marked "possible duplicate" — Alfa and axe-core both flagged the same WCAG SC on overlapping pages. If they target the same element, the axe-core report is authoritative. Filter the CSV by possible_duplicate_of to see these. Two engines flagging the same barrier reduces the chance of a false positive.

Findings needing review

These findings need manual verification before they can be treated as confirmed failures. Obligation remains visible for each finding.

Serious axe html-has-lang WCAG 2.0 A <html> element must have a lang attribute (WCAG 3.1.1) 340/1948 pages · 340 instances Likely template

Bug ID: VS-6cc73cb3
Pattern ID: VS-c126b6a6
Combined ID: VS-6cc73cb3 (pattern VS-c126b6a6) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 3.1.1 Language of Page (Level A, WCAG 2.0)
Rule: axe-core — <html> element must have a lang attribute [html-has-lang]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm
XPath / selector: html
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<html>

Description

<html> element must have a lang attribute. Detected by axe-core rule html-has-lang on 340 of 1948 scanned pages (340 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.
Locate the element: html
Confirm the axe-core finding for rule html-has-lang against WCAG 3.1.1 Language of Page.

Impact

Affects Without vision (1.0%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 340 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Add a lang attribute to <html> (e.g. lang="en").

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/html-has-lang?application=axeAPI

Triage status Notes

Critical axe image-alt WCAG 2.0 A Images must have alternative text (WCAG 1.1.1) 339/1948 pages · 3979 instances Likely template

Bug ID: VS-058fa054
Pattern ID: VS-9074b4dd
Combined ID: VS-058fa054 (pattern VS-9074b4dd) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.1.1 Non-text Content (Level A, WCAG 2.0)
Rule: axe-core — Images must have alternative text [image-alt]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm
XPath / selector: td[rowspan="2"][width="10"]:nth-child(1) > img[alt=" "][width="10"][src$="spacer.gif"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<img src="../../images/spacer.gif" width="10" height="1" alt=" " border="0">

Description

Images must have alternative text. Detected by axe-core rule image-alt on 339 of 1948 scanned pages (3979 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.
Locate the element: td[rowspan="2"][width="10"]:nth-child(1) > img[alt=" "][width="10"][src$="spacer.gif"]
Confirm the axe-core finding for rule image-alt against WCAG 1.1.1 Non-text Content.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 339 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give every <img> a meaningful alt attribute. Use alt="" only for decorative images so screen readers skip them.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI

Triage status Notes

Serious axe color-contrast WCAG 2.0 AA Elements must meet minimum color contrast ratio thresholds (WCAG 1.4.3) 309/1948 pages · 474 instances Likely template

Bug ID: VS-a1249b15
Pattern ID: VS-be8d563e
Combined ID: VS-a1249b15 (pattern VS-be8d563e) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 AA
Obligation: required
Handling: review
WCAG SC: 1.4.3 Contrast (Minimum) (Level AA, WCAG 2.0)
Rule: axe-core — Elements must meet minimum color contrast ratio thresholds [color-contrast]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm
XPath / selector: a[name="content_area"] > font[color="red"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<font color="red">Persons using assistive technology might not be able to fully access information in this file. For assistance, please send e-mail to: </font>

Description

Elements must meet minimum color contrast ratio thresholds. Detected by axe-core rule color-contrast on 309 of 1948 scanned pages (474 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.
Locate the element: a[name="content_area"] > font[color="red"]
Confirm the axe-core finding for rule color-contrast against WCAG 1.4.3 Contrast (Minimum).

Impact

Affects Limited vision (2.4%), Without color perception (4.5%).

Limited vision — 2.4% of population
Without color perception — 4.5% of population

Affected pages

…and more — all 309 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text). Check both light and dark modes.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/color-contrast?application=axeAPI

Triage status Notes

Serious axe link-name WCAG 2.0 A Links must have discernible text (WCAG 2.4.4) 141/1948 pages · 444 instances Likely template

Bug ID: VS-3a4a5aa1
Pattern ID: VS-e9fe47ac
Combined ID: VS-3a4a5aa1 (pattern VS-e9fe47ac) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.4.4 Link Purpose (In Context) (Level A, WCAG 2.0)
Rule: axe-core — Links must have discernible text [link-name]
Example URL: http://www.cdc.gov/pcd/issues/2007/apr/06_0073a.htm
XPath / selector: table[cellpadding="0"][cellspacing="0"]:nth-child(2) > tbody > tr > td[width="140"] > a[href$="cdc.gov/"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a href="http://www.cdc.gov/"><img src="http://www.cdc.gov/navimages/nav21.gif" border="0" alt=" " width="140" height="8"></a>

Description

Links must have discernible text. Detected by axe-core rule link-name on 141 of 1948 scanned pages (444 instances).

Steps to reproduce

Open http://www.cdc.gov/pcd/issues/2007/apr/06_0073a.htm.
Locate the element: table[cellpadding="0"][cellspacing="0"]:nth-child(2) > tbody > tr > td[width="140"] > a[href$="cdc.gov/"]
Confirm the axe-core finding for rule link-name against WCAG 2.4.4 Link Purpose (In Context).

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 141 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the link discernible text. Avoid empty links and icon-only links without an aria-label.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/link-name?application=axeAPI

Triage status Notes

Critical axe label WCAG 2.0 A Form elements must have labels (WCAG 4.1.2) 81/1948 pages · 93 instances Likely template

Bug ID: VS-e23d8599
Pattern ID: VS-fafffee0
Combined ID: VS-e23d8599 (pattern VS-fafffee0) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Form elements must have labels [label]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6118a8.htm?s_cid=mm6118a8_w
XPath / selector: #searchBox
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<input id="searchBox" class="searchBox" name="query" maxlength="256" type="text" style="width: 230px;">

Description

Form elements must have labels. Detected by axe-core rule label on 81 of 1948 scanned pages (93 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6118a8.htm?s_cid=mm6118a8_w.
Locate the element: #searchBox
Confirm the axe-core finding for rule label against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

…and more — all 81 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/label?application=axeAPI

Triage status Notes

Serious axe link-in-text-block WCAG 2.0 A Links must be distinguishable without relying on color (WCAG 1.4.1) 43/1948 pages · 43 instances Likely template

Bug ID: VS-4bf1f38e
Pattern ID: VS-8ade3360
Combined ID: VS-4bf1f38e (pattern VS-8ade3360) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.4.1 Use of Color (Level A, WCAG 2.0)
Rule: axe-core — Links must be distinguishable without relying on color [link-in-text-block]
Example URL: http://www.cdc.gov/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html
XPath / selector: .all-pages
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a class="all-pages" href="#toc">All pages <span class="cdc-fa-arrow-down-long"></span></a>

Description

Links must be distinguishable without relying on color. Detected by axe-core rule link-in-text-block on 43 of 1948 scanned pages (43 instances).

Steps to reproduce

Open http://www.cdc.gov/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html.
Locate the element: .all-pages
Confirm the axe-core finding for rule link-in-text-block against WCAG 1.4.1 Use of Color.

Impact

Affects Without color perception (4.5%), Limited vision (2.4%).

Without color perception — 4.5% of population
Limited vision — 2.4% of population

Affected pages

…and more — all 43 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/link-in-text-block?application=axeAPI

Triage status Notes

Serious axe frame-title WCAG 2.0 A Frames must have an accessible name (WCAG 4.1.2) 28/1948 pages · 57 instances Likely template

Bug ID: VS-0328a753
Pattern ID: VS-3f76c7ea
Combined ID: VS-0328a753 (pattern VS-3f76c7ea) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Frames must have an accessible name [frame-title]
Example URL: http://www.cdc.gov/heads-up/guidelines/returning-to-school.html
XPath / selector: div[data-yt-id="ZBcP08zEXLA"] > iframe[allowfullscreen="allowfullscreen"][title=""]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<iframe src="//www.youtube-nocookie.com/embed/ZBcP08zEXLA?autohide=0&enablejsapi=1&modestbranding=1&rel=0&origin=https://www.cdc.gov?autohide=0&enablejsapi=1&modestbranding=1&rel=0&origin=https://www.

Description

Frames must have an accessible name. Detected by axe-core rule frame-title on 28 of 1948 scanned pages (57 instances).

Steps to reproduce

Open http://www.cdc.gov/heads-up/guidelines/returning-to-school.html.
Locate the element: div[data-yt-id="ZBcP08zEXLA"] > iframe[allowfullscreen="allowfullscreen"][title=""]
Confirm the axe-core finding for rule frame-title against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

…and more — all 28 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give every <iframe> a descriptive title attribute.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/frame-title?application=axeAPI

Triage status Notes

Serious axe scrollable-region-focusable WCAG 2.0 A Scrollable region must have keyboard access (WCAG 2.1.1) 19/1948 pages · 39 instances Likely template

Bug ID: VS-9497a55e
Pattern ID: VS-c613c153
Combined ID: VS-9497a55e (pattern VS-c613c153) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.1.1 Keyboard (Level A, WCAG 2.0)
Rule: axe-core — Scrollable region must have keyboard access [scrollable-region-focusable]
Example URL: http://www.cdc.gov/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html
XPath / selector: div[data-section="cdc_generic_section_10"] > .dfe-block--cdcmodule.cdc_page_element.dfe-block--width-standard > .dfe-block__inner > .cdc-textblock > .table-responsive > div
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div style="overflow-x: auto;">

Description

Scrollable region must have keyboard access. Detected by axe-core rule scrollable-region-focusable on 19 of 1948 scanned pages (39 instances).

Steps to reproduce

Open http://www.cdc.gov/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html.
Locate the element: div[data-section="cdc_generic_section_10"] > .dfe-block--cdcmodule.cdc_page_element.dfe-block--width-standard > .dfe-block__inner > .cdc-textblock > .table-responsive > div
Confirm the axe-core finding for rule scrollable-region-focusable against WCAG 2.1.1 Keyboard.

Impact

Affects Without vision (1.0%), Limited manipulation/strength (13.0%), Limited reach (2.0%).

Without vision — 1.0% of population
Limited manipulation/strength — 13.0% of population
Limited reach — 2.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Make scrollable regions keyboard-focusable (tabindex="0") so keyboard users can scroll them.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/scrollable-region-focusable?application=axeAPI

Triage status Notes

Serious axe td-headers-attr WCAG 2.0 A Table cell headers attributes must refer to other <th> elements in the same tabl (WCAG 1.3.1) 11/1948 pages · 13 instances Likely template

Bug ID: VS-78e39994
Pattern ID: VS-07ba3b17
Combined ID: VS-78e39994 (pattern VS-07ba3b17) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — Table cell headers attributes must refer to other <th> elements in the same tabl [td-headers-attr]
Example URL: https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html
XPath / selector: table
History: first seen 2026-W25, last seen 2026-W40 (16 wk)

HTML snippet — use this to validate the finding without re-running the tool

<table class="prevaltb" border="1" summary="Table 2a: BRFSS Asthma Call-back Survey 2015-2017">

Description

Table cell headers attributes must refer to other <th> elements in the same tabl. Detected by axe-core rule td-headers-attr on 11 of 1948 scanned pages (13 instances).

Steps to reproduce

Open https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html.
Locate the element: table
Confirm the axe-core finding for rule td-headers-attr against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Associate data cells with their headers correctly using headers/id or scope.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/td-headers-attr?application=axeAPI

Triage status Notes

Serious axe aria-command-name WCAG 2.0 A ARIA commands must have an accessible name (WCAG 4.1.2) 10/1948 pages · 208 instances Likely template

Bug ID: VS-d92a475f
Pattern ID: VS-5c82bd60
Combined ID: VS-d92a475f (pattern VS-5c82bd60) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — ARIA commands must have an accessible name [aria-command-name]
Example URL: http://www.cdc.gov/hepatitis-surveillance-2023/hepatitis-c/figure-3-8.html
XPath / selector: th[aria-labelledby=":r3:-heading-0"] > .sort-icon[role="button"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<span role="button" class="sort-icon"><svg class="up" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 5"><path d="M0 5l5-5 5 5z"></path></svg><svg class="down" xmlns="http://www.w3.org/2000/svg" vi

Description

ARIA commands must have an accessible name. Detected by axe-core rule aria-command-name on 10 of 1948 scanned pages (208 instances).

Steps to reproduce

Open http://www.cdc.gov/hepatitis-surveillance-2023/hepatitis-c/figure-3-8.html.
Locate the element: th[aria-labelledby=":r3:-heading-0"] > .sort-icon[role="button"]
Confirm the axe-core finding for rule aria-command-name against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the command (button/link/menuitem) an accessible name via text or aria-label.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-command-name?application=axeAPI

Triage status Notes

Serious axe nested-interactive WCAG 2.0 A Interactive controls must not be nested (WCAG 4.1.2) 9/1948 pages · 34 instances

Bug ID: VS-1a005c61
Pattern ID: VS-58301a87
Combined ID: VS-1a005c61 (pattern VS-58301a87) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Interactive controls must not be nested [nested-interactive]
Example URL: http://www.cdc.gov/nchs/products/vsrr.htm
XPath / selector: #accordion-1-collapse-1
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div aria-labelledby="accordion-1-card-1" class="collapse d-print-block show " id="accordion-1-collapse-1" role="tab">

Description

Interactive controls must not be nested. Detected by axe-core rule nested-interactive on 9 of 1948 scanned pages (34 instances).

Steps to reproduce

Open http://www.cdc.gov/nchs/products/vsrr.htm.
Locate the element: #accordion-1-collapse-1
Confirm the axe-core finding for rule nested-interactive against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Don't nest interactive controls (e.g. a button inside a link); split them apart.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/nested-interactive?application=axeAPI

Triage status Notes

Critical axe select-name WCAG 2.0 A Select element must have an accessible name (WCAG 4.1.2) 7/1948 pages · 17 instances

Bug ID: VS-6ca8bdf4
Pattern ID: VS-fab92378
Combined ID: VS-6ca8bdf4 (pattern VS-fab92378) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Select element must have an accessible name [select-name]
Example URL: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6325a4.htm?s_cid=mm6325a4_w
XPath / selector: select
History: first seen 2026-W25, last seen 2026-W40 (16 wk)

HTML snippet — use this to validate the finding without re-running the tool

<select onchange="return RedirectLanguage(this.value);">
<option>Please select language</option>
<option value="fr">Français</option>

</select>

Description

Select element must have an accessible name. Detected by axe-core rule select-name on 7 of 1948 scanned pages (17 instances).

Steps to reproduce

Open http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6325a4.htm?s_cid=mm6325a4_w.
Locate the element: select
Confirm the axe-core finding for rule select-name against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the <select> an accessible name via a <label> or aria-label.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/select-name?application=axeAPI

Triage status Notes

Serious axe list WCAG 2.0 A <ul> and <ol> must only directly contain <li>, <script> or <template> elements (WCAG 1.3.1) 6/1948 pages · 6 instances

Bug ID: VS-03304dc6
Pattern ID: VS-a0bdbdf6
Combined ID: VS-03304dc6 (pattern VS-a0bdbdf6) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — <ul> and <ol> must only directly contain <li>, <script> or <template> elements [list]
Example URL: http://www.cdc.gov/mmwr/preview/mmwrhtml/00038946.htm
XPath / selector: ol[type="1"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<ol type="1">

Description

<ul> and <ol> must only directly contain <li>, <script> or <template> elements. Detected by axe-core rule list on 6 of 1948 scanned pages (6 instances).

Steps to reproduce

Open http://www.cdc.gov/mmwr/preview/mmwrhtml/00038946.htm.
Locate the element: ol[type="1"]
Confirm the axe-core finding for rule list against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use <ul>/<ol> with only <li> children for lists; don't fake lists with <div>s.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/list?application=axeAPI

Triage status Notes

Serious axe aria-prohibited-attr WCAG 2.0 A Elements must only use permitted ARIA attributes (WCAG 4.1.2) 6/1948 pages · 6 instances

Bug ID: VS-72f380af
Pattern ID: VS-ebb1c464
Combined ID: VS-72f380af (pattern VS-ebb1c464) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Elements must only use permitted ARIA attributes [aria-prohibited-attr]
Example URL: https://www.cdc.gov/stophivtogether/hiv-stigma/index.html?s_cid=so_togetherconsumertk0339
XPath / selector: #UNIQUE68967b4f71ad16a3
History: first seen 2026-W28, last seen 2026-W40 (11 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="cdc-card-slider cdc-video-slider slick-initialized slick-slider cdc-carousel-slider" id="UNIQUE68967b4f71ad16a3" aria-label="Carousel">

Description

Elements must only use permitted ARIA attributes. Detected by axe-core rule aria-prohibited-attr on 6 of 1948 scanned pages (6 instances).

Steps to reproduce

Open https://www.cdc.gov/stophivtogether/hiv-stigma/index.html?s_cid=so_togetherconsumertk0339.
Locate the element: #UNIQUE68967b4f71ad16a3
Confirm the axe-core finding for rule aria-prohibited-attr against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-prohibited-attr?application=axeAPI

Triage status Notes

Serious axe listitem WCAG 2.0 A <li> elements must be contained in a <ul> or <ol> (WCAG 1.3.1) 4/1948 pages · 36 instances

Bug ID: VS-b0eaface
Pattern ID: VS-6175596b
Combined ID: VS-b0eaface (pattern VS-6175596b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — <li> elements must be contained in a <ul> or <ol> [listitem]
Example URL: http://www.cdc.gov/zika/hcp/diagnosis-testing/placental-and-fetal-tissue-specimens.html
XPath / selector: .table.dfe-table.table-no-header:nth-child(5) > .table-body[role="rowgroup"] > .table-row.row[role="row"]:nth-child(1) > .table-col[role="cell"][data-col="2"] > li
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<li>4 or more specimens</li>

Description

<li> elements must be contained in a <ul> or <ol>. Detected by axe-core rule listitem on 4 of 1948 scanned pages (36 instances).

Steps to reproduce

Open http://www.cdc.gov/zika/hcp/diagnosis-testing/placental-and-fetal-tissue-specimens.html.
Locate the element: .table.dfe-table.table-no-header:nth-child(5) > .table-body[role="rowgroup"] > .table-row.row[role="row"]:nth-child(1) > .table-col[role="cell"][data-col="2"] > li
Confirm the axe-core finding for rule listitem against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: <li> must be inside a <ul> or <ol>.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/listitem?application=axeAPI

Triage status Notes

Serious axe blink WCAG 2.0 A <blink> elements are deprecated and must not be used (WCAG 2.2.2) 4/1948 pages · 5 instances

Bug ID: VS-559475ad
Pattern ID: VS-4b45acfe
Combined ID: VS-559475ad (pattern VS-4b45acfe) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.2.2 Pause, Stop, Hide (Level A, WCAG 2.0)
Rule: axe-core — <blink> elements are deprecated and must not be used [blink]
Example URL: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5202a2.htm
XPath / selector: blink
History: first seen 2026-W25, last seen 2026-W40 (16 wk)

HTML snippet — use this to validate the finding without re-running the tool

<blink><big><strong>Disclaimer</strong></big></blink>

Description

<blink> elements are deprecated and must not be used. Detected by axe-core rule blink on 4 of 1948 scanned pages (5 instances).

Steps to reproduce

Open http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5202a2.htm.
Locate the element: blink
Confirm the axe-core finding for rule blink against WCAG 2.2.2 Pause, Stop, Hide.

Impact

Affects Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/blink?application=axeAPI

Triage status Notes

Critical axe aria-required-children WCAG 2.0 A Certain ARIA roles must contain particular children (WCAG 1.3.1) 1/1948 pages · 2 instances Likely content

Bug ID: VS-c2f630a4
Pattern ID: VS-9429bb8d
Combined ID: VS-c2f630a4 (pattern VS-9429bb8d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — Certain ARIA roles must contain particular children [aria-required-children]
Example URL: https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294
XPath / selector: #accordion-7
History: first seen 2026-W25, last seen 2026-W40 (14 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="accordion indicator-plus accordion-white mb3" id="accordion-7" role="tablist">

Description

Certain ARIA roles must contain particular children. Detected by axe-core rule aria-required-children on 1 of 1948 scanned pages (2 instances).

Steps to reproduce

Open https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294.
Locate the element: #accordion-7
Confirm the axe-core finding for rule aria-required-children against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

/stophivtogether/hiv-testing/self-testing.html

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Add the child roles this container role requires (e.g. a list needs listitem children).

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-required-children?application=axeAPI

Triage status Notes

Critical axe button-name WCAG 2.0 A Buttons must have discernible text (WCAG 4.1.2) 1/1948 pages · 1 instances Likely content

Bug ID: VS-7317f571
Pattern ID: VS-e7298c00
Combined ID: VS-7317f571 (pattern VS-e7298c00) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Buttons must have discernible text [button-name]
Example URL: http://www.cdc.gov/hiv/treatment/index.html
XPath / selector: #search__icon
History: first seen 2026-W26, last seen 2026-W40 (12 wk)

HTML snippet — use this to validate the finding without re-running the tool

<button id="search__icon" class="c-search__icon"></button>

Description

Buttons must have discernible text. Detected by axe-core rule button-name on 1 of 1948 scanned pages (1 instances).

Steps to reproduce

Open http://www.cdc.gov/hiv/treatment/index.html.
Locate the element: #search__icon
Confirm the axe-core finding for rule button-name against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

/hiv/treatment/index.html

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the button an accessible name via its text content, aria-label, or aria-labelledby.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/button-name?application=axeAPI

Triage status Notes

Serious axe document-title WCAG 2.0 A Documents must have <title> element to aid in navigation (WCAG 2.4.2) 1/1948 pages · 1 instances Likely content

Bug ID: VS-9134986c
Pattern ID: VS-c80d5faa
Combined ID: VS-9134986c (pattern VS-c80d5faa) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.4.2 Page Titled (Level A, WCAG 2.0)
Rule: axe-core — Documents must have <title> element to aid in navigation [document-title]
Example URL: https://www.cdc.gov/nchs/pressroom/stat/index.html
XPath / selector: html
History: first seen 2026-W25, last seen 2026-W40 (10 wk)

HTML snippet — use this to validate the finding without re-running the tool

<html>

Description

Documents must have <title> element to aid in navigation. Detected by axe-core rule document-title on 1 of 1948 scanned pages (1 instances).

Steps to reproduce

Open https://www.cdc.gov/nchs/pressroom/stat/index.html.
Locate the element: html
Confirm the axe-core finding for rule document-title against WCAG 2.4.2 Page Titled.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

/nchs/pressroom/stat/index.html

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the page a unique, descriptive <title>.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/document-title?application=axeAPI

Triage status Notes

Serious axe region Best Practice All page content should be contained by landmarks (WCAG criterion undetermined) 1692/1948 pages · 12172 instances Likely template

Bug ID: VS-ab1cac91
Pattern ID: VS-f18df681
Combined ID: VS-ab1cac91 (pattern VS-f18df681) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — All page content should be contained by landmarks [region]
Example URL: http://www.cdc.gov/niosh/bulletin/2017/miners-cardio.html
XPath / selector: .cdc-site-gov-notice
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="cdc-site-gov-notice noindex noprint" aria-label="Official website of the United States government">

Description

All page content should be contained by landmarks. Detected by axe-core rule region on 1692 of 1948 scanned pages (12172 instances).

Steps to reproduce

Open http://www.cdc.gov/niosh/bulletin/2017/miners-cardio.html.
Locate the element: .cdc-site-gov-notice
Confirm the axe-core finding for rule region.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 1692 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/region?application=axeAPI

Triage status Notes

Serious axe label-title-only Best Practice Form elements should have a visible label (WCAG criterion undetermined) 95/1948 pages · 95 instances Likely template

Bug ID: VS-71d45604
Pattern ID: VS-33841929
Combined ID: VS-71d45604 (pattern VS-33841929) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Form elements should have a visible label [label-title-only]
Example URL: http://www.cdc.gov/pcd/issues/2006/oct/05_0243_zhs.htm
XPath / selector: .smallfield
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<input class="smallfield" type="text" name="email" size="15" title="插入电子邮件" value="插入电子邮件" onfocus="this.value=''">

Description

Form elements should have a visible label. Detected by axe-core rule label-title-only on 95 of 1948 scanned pages (95 instances).

Steps to reproduce

Open http://www.cdc.gov/pcd/issues/2006/oct/05_0243_zhs.htm.
Locate the element: .smallfield
Confirm the axe-core finding for rule label-title-only.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 95 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/label-title-only?application=axeAPI

Triage status Notes

Serious axe tabindex Best Practice Elements should not have tabindex greater than zero (WCAG criterion undetermined) 93/1948 pages · 279 instances Likely template

Bug ID: VS-22c3bb98
Pattern ID: VS-7430f84c
Combined ID: VS-22c3bb98 (pattern VS-7430f84c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Elements should not have tabindex greater than zero [tabindex]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: a[href$="#content"]
History: first seen 2026-W24, last seen 2026-W40 (9 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a class="skippy visually-hidden-focusable" href="#content" tabindex="1">Skip to site content</a>

Description

Elements should not have tabindex greater than zero. Detected by axe-core rule tabindex on 93 of 1948 scanned pages (279 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: a[href$="#content"]
Confirm the axe-core finding for rule tabindex.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 93 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Avoid tabindex values greater than 0; they create a confusing tab order.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/tabindex?application=axeAPI

Triage status Notes

Moderate alfa sia-r113 WCAG 2.2 AA Target size is at least 24×24 CSS pixels or has spacing (Minimum) (WCAG 2.5.8) 155/1948 pages · 1476 instances Likely template

Bug ID: VS-92cb73c0
Pattern ID: VS-179ad9b3
Combined ID: VS-92cb73c0 (pattern VS-179ad9b3) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.2 AA
Obligation: required
Handling: review
WCAG SC: 2.5.8 Target Size (Minimum) (Level AA, WCAG 2.2)
Rule: Siteimprove Alfa — Target size is at least 24×24 CSS pixels or has spacing (Minimum) [sia-r113]
Example URL: https://www.cdc.gov/pcd/issues/2013/12_0096.htm
XPath / selector: <a href="#Abstract">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Target size is at least 24×24 CSS pixels or has spacing (Minimum). Detected by Siteimprove Alfa rule sia-r113 on 155 of 1948 scanned pages (1476 instances).

Steps to reproduce

Open https://www.cdc.gov/pcd/issues/2013/12_0096.htm.
Locate the element: <a href="#Abstract">
Confirm the Siteimprove Alfa finding for rule sia-r113 against WCAG 2.5.8 Target Size (Minimum).

Impact

Affects Limited manipulation/strength (13.0%), Limited reach (2.0%), Limited vision (2.4%).

Limited manipulation/strength — 13.0% of population
Limited reach — 2.0% of population
Limited vision — 2.4% of population

Affected pages

…and more — all 155 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r113

Triage status Notes

Moderate alfa sia-r69 WCAG 2.0 AA Text has sufficient color contrast (Enhanced) (WCAG 1.4.3) 154/1948 pages · 837 instances Likely template

Bug ID: VS-36c43a15
Pattern ID: VS-f7e99f4b
Combined ID: VS-36c43a15 (pattern VS-f7e99f4b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 AA
Obligation: required
Handling: review
WCAG SC: 1.4.3 Contrast (Minimum) (Level AA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has sufficient color contrast (Enhanced) [sia-r69]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/cryptococcosis
XPath / selector: text: " Health Topics "
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Text has sufficient color contrast (Enhanced). Detected by Siteimprove Alfa rule sia-r69 on 154 of 1948 scanned pages (837 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/cryptococcosis.
Locate the element: text: " Health Topics "
Confirm the Siteimprove Alfa finding for rule sia-r69 against WCAG 1.4.3 Contrast (Minimum).

Impact

Affects Limited vision (2.4%), Without color perception (4.5%).

Limited vision — 2.4% of population
Without color perception — 4.5% of population

Affected pages

…and more — all 154 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase text contrast to meet WCAG AA (4.5:1, or 3:1 for large text).

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r69

Triage status Notes

Moderate alfa sia-r4 WCAG 2.0 A Document has a valid lang attribute (WCAG 3.1.1) 85/1948 pages · 85 instances Likely template

Bug ID: VS-dbcc318d
Pattern ID: VS-7a0e5645
Combined ID: VS-dbcc318d (pattern VS-7a0e5645) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 3.1.1 Language of Page (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Document has a valid lang attribute [sia-r4]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm
XPath / selector: <html>
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Document has a valid lang attribute. Detected by Siteimprove Alfa rule sia-r4 on 85 of 1948 scanned pages (85 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm.
Locate the element: <html>
Confirm the Siteimprove Alfa finding for rule sia-r4 against WCAG 3.1.1 Language of Page.

Impact

Affects Without vision (1.0%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 85 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Add a valid lang attribute to <html>.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r4

Triage status Notes

Moderate alfa sia-r2 WCAG 2.0 A Image has accessible name (WCAG 1.1.1) 84/1948 pages · 891 instances Likely template

Bug ID: VS-fdd075cd
Pattern ID: VS-a24eaa8c
Combined ID: VS-fdd075cd (pattern VS-a24eaa8c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.1.1 Non-text Content (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Image has accessible name [sia-r2]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm
XPath / selector: <img src="../../images/spacer.gif" width="10" height="1" alt=" ">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 84 of 1948 scanned pages (891 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm.
Locate the element: <img src="../../images/spacer.gif" width="10" height="1" alt=" ">
Confirm the Siteimprove Alfa finding for rule sia-r2 against WCAG 1.1.1 Non-text Content.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 84 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give every <img> an accessible name (alt text), or alt="" if purely decorative.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r2

Triage status Notes

Moderate alfa sia-r68 WCAG 2.0 A Presentational children of an element are not focusable (WCAG 1.3.1) 45/1948 pages · 460 instances Likely template

Bug ID: VS-a765dd5d
Pattern ID: VS-d6097011
Combined ID: VS-a765dd5d (pattern VS-d6097011) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Presentational children of an element are not focusable [sia-r68]
Example URL: https://www.cdc.gov/pcd/issues/2013/12_0096.htm
XPath / selector: <ul class="forWide">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Presentational children of an element are not focusable. Detected by Siteimprove Alfa rule sia-r68 on 45 of 1948 scanned pages (460 instances).

Steps to reproduce

Open https://www.cdc.gov/pcd/issues/2013/12_0096.htm.
Locate the element: <ul class="forWide">
Confirm the Siteimprove Alfa finding for rule sia-r68 against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 45 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r68

Triage status Notes

Moderate alfa sia-r14 WCAG 2.1 A Accessible name of link or button matches visible label (WCAG 2.5.3) 43/1948 pages · 90 instances Likely template

Bug ID: VS-940e6969
Pattern ID: VS-f7dba940
Combined ID: VS-940e6969 (pattern VS-f7dba940) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.1 A
Obligation: required
Handling: review
WCAG SC: 2.5.3 Label in Name (Level A, WCAG 2.1)
Rule: Siteimprove Alfa — Accessible name of link or button matches visible label [sia-r14]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: <a data-action="print" href="#print" class="d-none d-md-block" aria-label="print this page">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 43 of 1948 scanned pages (90 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: <a data-action="print" href="#print" class="d-none d-md-block" aria-label="print this page">
Confirm the Siteimprove Alfa finding for rule sia-r14 against WCAG 2.5.3 Label in Name.

Impact

Affects Without vision (1.0%), Without speech (0.5%).

Without vision — 1.0% of population
Without speech — 0.5% of population

Affected pages

…and more — all 43 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r14

Triage status Notes

Moderate alfa sia-r11 WCAG 2.0 A Link has accessible name (WCAG 2.4.4) 33/1948 pages · 85 instances Likely template

Bug ID: VS-e274efa9
Pattern ID: VS-28ebd979
Combined ID: VS-e274efa9 (pattern VS-28ebd979) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.4.4 Link Purpose (In Context) (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Link has accessible name [sia-r11]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: <a href="/niosh/media/pdfs/2026/05/2006-110.pdf" target="_blank" rel="noopener noreferrer" class="no-decoration">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Link has accessible name. Detected by Siteimprove Alfa rule sia-r11 on 33 of 1948 scanned pages (85 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: <a href="/niosh/media/pdfs/2026/05/2006-110.pdf" target="_blank" rel="noopener noreferrer" class="no-decoration">
Confirm the Siteimprove Alfa finding for rule sia-r11 against WCAG 2.4.4 Link Purpose (In Context).

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

…and more — all 33 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the link an accessible name via text content or aria-label.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r11

Triage status Notes

Moderate alfa sia-r8 WCAG 2.0 A Form field has accessible name (WCAG 4.1.2) 23/1948 pages · 24 instances Likely template

Bug ID: VS-63d67050
Pattern ID: VS-a48e6078
Combined ID: VS-63d67050 (pattern VS-a48e6078) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Form field has accessible name [sia-r8]
Example URL: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6150a2.htm?s_cid=mm6150a2_w
XPath / selector: <input id="searchBox" class="searchBox" name="query" maxlength="256">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Form field has accessible name. Detected by Siteimprove Alfa rule sia-r8 on 23 of 1948 scanned pages (24 instances).

Steps to reproduce

Open http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6150a2.htm?s_cid=mm6150a2_w.
Locate the element: <input id="searchBox" class="searchBox" name="query" maxlength="256">
Confirm the Siteimprove Alfa finding for rule sia-r8 against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Associate the form field with a label.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r8

Triage status Notes

Moderate axe landmark-unique Best Practice Landmarks should have a unique role or role/label/title (i.e. accessible name) c (WCAG criterion undetermined) 584/1948 pages · 778 instances Likely template

Bug ID: VS-ce104c6a
Pattern ID: VS-8806389c
Combined ID: VS-ce104c6a (pattern VS-8806389c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Landmarks should have a unique role or role/label/title (i.e. accessible name) c [landmark-unique]
Example URL: http://www.cdc.gov/niosh/bulletin/2017/miners-cardio.html
XPath / selector: .page-right-rail__static
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<aside class="page-right-rail__static noindex" role="complementary" style="margin-top: 47px;">

Description

Landmarks should have a unique role or role/label/title (i.e. accessible name) c. Detected by axe-core rule landmark-unique on 584 of 1948 scanned pages (778 instances).

Steps to reproduce

Open http://www.cdc.gov/niosh/bulletin/2017/miners-cardio.html.
Locate the element: .page-right-rail__static
Confirm the axe-core finding for rule landmark-unique.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 584 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: When a landmark role/type repeats (e.g. two <nav>s), give each a distinct accessible name with aria-label or aria-labelledby (e.g. "Primary" and "Footer" navigation) so screen-reader users can tell them apart.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-unique?application=axeAPI

Triage status Notes

Moderate axe heading-order Best Practice Heading levels should only increase by one (WCAG criterion undetermined) 512/1948 pages · 688 instances Likely template

Bug ID: VS-b1f93f77
Pattern ID: VS-d25f622d
Combined ID: VS-b1f93f77 (pattern VS-d25f622d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Heading levels should only increase by one [heading-order]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm
XPath / selector: h3:nth-child(10)
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<h3>Editorial Note</h3>

Description

Heading levels should only increase by one. Detected by axe-core rule heading-order on 512 of 1948 scanned pages (688 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.
Locate the element: h3:nth-child(10)
Confirm the axe-core finding for rule heading-order.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 512 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/heading-order?application=axeAPI

Triage status Notes

Moderate axe landmark-one-main Best Practice Document should have one main landmark (WCAG criterion undetermined) 440/1948 pages · 440 instances Likely template

Bug ID: VS-49b5acde
Pattern ID: VS-d5d82446
Combined ID: VS-49b5acde (pattern VS-d5d82446) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Document should have one main landmark [landmark-one-main]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm
XPath / selector: html
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<html>

Description

Document should have one main landmark. Detected by axe-core rule landmark-one-main on 440 of 1948 scanned pages (440 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.
Locate the element: html
Confirm the axe-core finding for rule landmark-one-main.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 440 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Each page should have exactly one <main> landmark.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-one-main?application=axeAPI

Triage status Notes

Moderate alfa sia-r111 WCAG 2.x AAA Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5) 416/1948 pages · 12037 instances Likely template

Bug ID: VS-e6b7f71f
Pattern ID: VS-cb53cc4d
Combined ID: VS-e6b7f71f (pattern VS-cb53cc4d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 2.5.5 Target Size (Enhanced) (Level AAA, WCAG 2.1)
Rule: Siteimprove Alfa — Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: <a class="cdc-header__title-super" href="/niosh/index.html">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 416 of 1948 scanned pages (12037 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: <a class="cdc-header__title-super" href="/niosh/index.html">
Confirm the Siteimprove Alfa finding for rule sia-r111 against WCAG 2.5.5 Target Size (Enhanced).

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 416 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111

Triage status Notes

Moderate alfa sia-r66 WCAG 2.x AAA Text has enhanced contrast (WCAG 1.4.6) 355/1948 pages · 10203 instances Likely template

Bug ID: VS-af32558f
Pattern ID: VS-646b1e0b
Combined ID: VS-af32558f (pattern VS-646b1e0b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.6 Contrast (Enhanced) (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has enhanced contrast [sia-r66]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: text: " Así es como usted puede verificarlo "
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 355 of 1948 scanned pages (10203 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: text: " Así es como usted puede verificarlo "
Confirm the Siteimprove Alfa finding for rule sia-r66 against WCAG 1.4.6 Contrast (Enhanced).

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 355 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase text contrast to meet WCAG AAA (7:1).

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r66

Triage status Notes

Moderate alfa sia-r57 Undetermined Scrolling content can be accessed by keyboard (WCAG criterion undetermined) 307/1948 pages · 4119 instances Likely template

Bug ID: VS-5879d4e8
Pattern ID: VS-c18be945
Combined ID: VS-5879d4e8 (pattern VS-c18be945) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Scrolling content can be accessed by keyboard [sia-r57]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: text: "Ir a la búsqueda"
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Scrolling content can be accessed by keyboard. Detected by Siteimprove Alfa rule sia-r57 on 307 of 1948 scanned pages (4119 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: text: "Ir a la búsqueda"
Confirm the Siteimprove Alfa finding for rule sia-r57.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 307 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r57

Triage status Notes

Moderate alfa sia-r18 Undetermined aria attribute is permitted for element role (WCAG criterion undetermined) 222/1948 pages · 278 instances Likely template

Bug ID: VS-90f75c21
Pattern ID: VS-e05344b9
Combined ID: VS-90f75c21 (pattern VS-e05344b9) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — aria attribute is permitted for element role [sia-r18]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: @aria-label="Un sitio oficial del Gobierno de Estados Unidos"
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

aria attribute is permitted for element role. Detected by Siteimprove Alfa rule sia-r18 on 222 of 1948 scanned pages (278 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: @aria-label="Un sitio oficial del Gobierno de Estados Unidos"
Confirm the Siteimprove Alfa finding for rule sia-r18.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 222 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Only use ARIA states/properties that are allowed on this element/role.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r18

Triage status Notes

Moderate alfa sia-r74 WCAG 2.x AAA Link is distinguishable without relying on color (WCAG 1.4.8) 192/1948 pages · 935 instances Likely template

Bug ID: VS-1fe90707
Pattern ID: VS-fbf54eba
Combined ID: VS-1fe90707 (pattern VS-fbf54eba) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.8 Visual Presentation (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Link is distinguishable without relying on color [sia-r74]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: <p class="cdc-footer__super-desc">
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Link is distinguishable without relying on color. Detected by Siteimprove Alfa rule sia-r74 on 192 of 1948 scanned pages (935 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: <p class="cdc-footer__super-desc">
Confirm the Siteimprove Alfa finding for rule sia-r74 against WCAG 1.4.8 Visual Presentation.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 192 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r74

Triage status Notes

Moderate axe page-has-heading-one Best Practice Page should contain a level-one heading (WCAG criterion undetermined) 152/1948 pages · 152 instances Likely template

Bug ID: VS-8b442a74
Pattern ID: VS-fa44f293
Combined ID: VS-8b442a74 (pattern VS-fa44f293) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Page should contain a level-one heading [page-has-heading-one]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: html
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<html lang="en-us" class="cdc-theme-cdc cdc-root-home cdc-page-type--2024home">

Description

Page should contain a level-one heading. Detected by axe-core rule page-has-heading-one on 152 of 1948 scanned pages (152 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: html
Confirm the axe-core finding for rule page-has-heading-one.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 152 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/page-has-heading-one?application=axeAPI

Triage status Notes

Moderate alfa sia-r53 Undetermined Headings are structured hierarchically (WCAG criterion undetermined) 136/1948 pages · 184 instances Likely template

Bug ID: VS-9fd5f603
Pattern ID: VS-f054f4a4
Combined ID: VS-9fd5f603 (pattern VS-f054f4a4) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Headings are structured hierarchically [sia-r53]
Example URL: https://www.cdc.gov/mmwr/volumes/72/wr/mm7216a1.htm?s_cid=mm7216a1_w
XPath / selector: <h3>
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Headings are structured hierarchically. Detected by Siteimprove Alfa rule sia-r53 on 136 of 1948 scanned pages (184 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/volumes/72/wr/mm7216a1.htm?s_cid=mm7216a1_w.
Locate the element: <h3>
Confirm the Siteimprove Alfa finding for rule sia-r53.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 136 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use headings in a logical, non-skipping order.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r53

Triage status Notes

Moderate alfa sia-r73 WCAG 2.x AAA Text has minimum contrast ratio of 4.5:1 (WCAG 1.4.8) 130/1948 pages · 21730 instances Likely template

Bug ID: VS-71e51e33
Pattern ID: VS-2208081b
Combined ID: VS-71e51e33 (pattern VS-2208081b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.8 Visual Presentation (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has minimum contrast ratio of 4.5:1 [sia-r73]
Example URL: https://www.cdc.gov/pcd/issues/2013/12_0096.htm
XPath / selector: <p>
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Text has minimum contrast ratio of 4.5:1. Detected by Siteimprove Alfa rule sia-r73 on 130 of 1948 scanned pages (21730 instances).

Steps to reproduce

Open https://www.cdc.gov/pcd/issues/2013/12_0096.htm.
Locate the element: <p>
Confirm the Siteimprove Alfa finding for rule sia-r73 against WCAG 1.4.8 Visual Presentation.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 130 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73

Triage status Notes

Moderate axe skip-link Best Practice The skip-link target should exist and be focusable (WCAG criterion undetermined) 104/1948 pages · 105 instances Likely template

Bug ID: VS-8ad0c097
Pattern ID: VS-4edfe386
Combined ID: VS-8ad0c097 (pattern VS-4edfe386) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — The skip-link target should exist and be focusable [skip-link]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: a[href$="#headerSearch"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a class="skippy visually-hidden-focusable" href="#headerSearch" tabindex="2">Skip to search</a>

Description

The skip-link target should exist and be focusable. Detected by axe-core rule skip-link on 104 of 1948 scanned pages (105 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: a[href$="#headerSearch"]
Confirm the axe-core finding for rule skip-link.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 104 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Ensure the skip link targets a real, focusable element (its href must match an existing id).

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/skip-link?application=axeAPI

Triage status Notes

Moderate alfa sia-r70 Undetermined No obsolete or deprecated elements are used (WCAG criterion undetermined) 102/1948 pages · 102 instances Likely template

Bug ID: VS-42b21cdd
Pattern ID: VS-3d033717
Combined ID: VS-42b21cdd (pattern VS-3d033717) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: advisory
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — No obsolete or deprecated elements are used [sia-r70]
Example URL: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm
XPath / selector: {"type":"document","children":[{"type":"element","children":[{"type":"element","
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

No obsolete or deprecated elements are used. Detected by Siteimprove Alfa rule sia-r70 on 102 of 1948 scanned pages (102 instances).

Steps to reproduce

Open https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm.
Locate the element: {"type":"document","children":[{"type":"element","children":[{"type":"element","
Confirm the Siteimprove Alfa finding for rule sia-r70.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 102 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r70

Triage status Notes

Moderate axe landmark-contentinfo-is-top-level Best Practice Contentinfo landmark should not be contained in another landmark (WCAG criterion undetermined) 93/1948 pages · 93 instances Likely template

Bug ID: VS-e2523e60
Pattern ID: VS-424cced9
Combined ID: VS-e2523e60 (pattern VS-424cced9) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Contentinfo landmark should not be contained in another landmark [landmark-contentinfo-is-top-level]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: .cdc-footer > footer
History: first seen 2026-W24, last seen 2026-W40 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<footer>

Description

Contentinfo landmark should not be contained in another landmark. Detected by axe-core rule landmark-contentinfo-is-top-level on 93 of 1948 scanned pages (93 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: .cdc-footer > footer
Confirm the axe-core finding for rule landmark-contentinfo-is-top-level.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 93 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-contentinfo-is-top-level?application=axeAPI

Triage status Notes

Moderate axe landmark-no-duplicate-banner Best Practice Document should not have more than one banner landmark (WCAG criterion undetermined) 93/1948 pages · 93 instances Likely template

Bug ID: VS-fc7bb387
Pattern ID: VS-054101da
Combined ID: VS-fc7bb387 (pattern VS-054101da) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Document should not have more than one banner landmark [landmark-no-duplicate-banner]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: .cdc-header
History: first seen 2026-W24, last seen 2026-W40 (11 wk)

HTML snippet — use this to validate the finding without re-running the tool

<header class="container cdc-header">

Description

Document should not have more than one banner landmark. Detected by axe-core rule landmark-no-duplicate-banner on 93 of 1948 scanned pages (93 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: .cdc-header
Confirm the axe-core finding for rule landmark-no-duplicate-banner.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 93 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use only one banner landmark (<header> at the top level) per page.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-no-duplicate-banner?application=axeAPI

Triage status Notes

Moderate axe landmark-no-duplicate-contentinfo Best Practice Document should not have more than one contentinfo landmark (WCAG criterion undetermined) 93/1948 pages · 93 instances Likely template

Bug ID: VS-8cd272f2
Pattern ID: VS-b465dfd7
Combined ID: VS-8cd272f2 (pattern VS-b465dfd7) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Document should not have more than one contentinfo landmark [landmark-no-duplicate-contentinfo]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html
XPath / selector: .cdc-footer
History: first seen 2026-W24, last seen 2026-W40 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<footer class="container cdc-footer noindex" role="contentinfo">

Description

Document should not have more than one contentinfo landmark. Detected by axe-core rule landmark-no-duplicate-contentinfo on 93 of 1948 scanned pages (93 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html.
Locate the element: .cdc-footer
Confirm the axe-core finding for rule landmark-no-duplicate-contentinfo.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 93 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use only one contentinfo landmark (<footer> at the top level) per page.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-no-duplicate-contentinfo?application=axeAPI

Triage status Notes

Minor axe aria-allowed-role Best Practice ARIA role should be appropriate for the element (WCAG criterion undetermined) 78/1948 pages · 92 instances Likely template

Bug ID: VS-ad4298bf
Pattern ID: VS-4fac2f41
Combined ID: VS-ad4298bf (pattern VS-4fac2f41) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — ARIA role should be appropriate for the element [aria-allowed-role]
Example URL: https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html
XPath / selector: img[alt="2006-110sp"]
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<img src="/niosh/media/images/2026/05/2006-110_sp-cover.jpg" alt="2006-110sp" role="presentation">

Description

ARIA role should be appropriate for the element. Detected by axe-core rule aria-allowed-role on 78 of 1948 scanned pages (92 instances).

Steps to reproduce

Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.
Locate the element: img[alt="2006-110sp"]
Confirm the axe-core finding for rule aria-allowed-role.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 78 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Remove or change the ARIA role — it isn't allowed on this element type.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-allowed-role?application=axeAPI

Triage status Notes

Moderate alfa sia-r61 Undetermined Form field label is visible (WCAG criterion undetermined) 59/1948 pages · 59 instances Likely template

Bug ID: VS-f26b4bca
Pattern ID: VS-7118fead
Combined ID: VS-f26b4bca (pattern VS-7118fead) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Form field label is visible [sia-r61]
Example URL: https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/cryptococcosis
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Form field label is visible. Detected by Siteimprove Alfa rule sia-r61 on 59 of 1948 scanned pages (59 instances).

Steps to reproduce

Open https://%5C%5C%5C%5Ccdc.gov%5C%5Cproject%5C%5COPHSS_CSELS_DPHID_MMWR_OD_Editors%5C%5CMMWR-WE%5C%5Cxxx%20-%20AUGUST%2021%5C%5CRoundtable%5C%5Cvqf8@cdc.gov/cryptococcosis.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r61.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 59 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r61

Triage status Notes

Moderate deprecated-html presentational-attr Undetermined Presentational attribute (use CSS) (WCAG criterion undetermined) 49/1948 pages · 5533 instances Likely template

Bug ID: VS-33602509
Pattern ID: VS-04a9d28c
Combined ID: VS-33602509 (pattern VS-04a9d28c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: deprecated-html — Presentational attribute (use CSS) [presentational-attr]
Example URL: http://www.cdc.gov/pcd/issues/2011/nov/10_0197_es.htm
XPath / selector: body
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<body bgcolor="#ffffff" leftmargin="0" topmargin="0" marginheight="0" marginwidth="0" background="../../../images/bkgnd.gif" class=" dmat-load-complete">

<!--webbot bot="Include" U-Include="../../../

Description

Presentational attribute (use CSS). Detected by deprecated-html rule presentational-attr on 49 of 1948 scanned pages (5533 instances).

Steps to reproduce

Open http://www.cdc.gov/pcd/issues/2011/nov/10_0197_es.htm.
Locate the element: body
Confirm the deprecated-html finding for rule presentational-attr.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 49 pages (CSV).

Testing environment

Automated: deprecated-html, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

Not captured by automated scan — requires manual testing.

Triage status Notes

Moderate deprecated-html font-element Undetermined Obsolete <font> element (use CSS) (WCAG criterion undetermined) 35/1948 pages · 261 instances Likely template

Bug ID: VS-32f0b684
Pattern ID: VS-91d2294a
Combined ID: VS-32f0b684 (pattern VS-91d2294a) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: deprecated-html — Obsolete <font> element (use CSS) [font-element]
Example URL: http://www.cdc.gov/pcd/issues/2011/nov/10_0197_es.htm
XPath / selector: font
History: first seen 2026-W24, last seen 2026-W40 (17 wk)

HTML snippet — use this to validate the finding without re-running the tool

<font size="-1" color="#808080">Versión en español aprobada por <i>CDC Multilingual Services</i> – Order # 
			226806-C</font>

Description

Obsolete <font> element (use CSS). Detected by deprecated-html rule font-element on 35 of 1948 scanned pages (261 instances).

Steps to reproduce

Open http://www.cdc.gov/pcd/issues/2011/nov/10_0197_es.htm.
Locate the element: font
Confirm the deprecated-html finding for rule font-element.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 35 pages (CSV).

Testing environment

Automated: deprecated-html, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

Not captured by automated scan — requires manual testing.

Triage status Notes

28 more lower-priority finding(s) — summary only

Full detail — steps, affected pages, snippets — for these and every finding is in the CSV.

Severity	Finding	WCAG category	Pages
Minor	Table header text should not be empty (WCAG criterion undetermined) [empty-table-header]	Best Practice	34
Moderate	Scrollable element is keyboard accessible (WCAG 1.4.8) [sia-r80]	WCAG 2.x AAA	27
Moderate	Table header has scope (WCAG criterion undetermined) [sia-r78]	Undetermined	26
Moderate	Obsolete <big> element (use CSS) (WCAG criterion undetermined) [big-element]	Undetermined	24
Minor	Headings should not be empty (WCAG criterion undetermined) [empty-heading]	Best Practice	22
Moderate	scope attribute should be used correctly (WCAG criterion undetermined) [scope-attr-valid]	Best Practice	11
Moderate	Obsolete <center> element (use CSS) (WCAG criterion undetermined) [center-element]	Undetermined	10
Moderate	Duplicate role landmark is labeled (WCAG criterion undetermined) [sia-r79]	Undetermined	9
Moderate	Component with same name serves same purpose (WCAG 4.1.2) [sia-r90]	WCAG 2.0 A	6
Moderate	Button has accessible name (WCAG 4.1.2) [sia-r12]	WCAG 2.0 A	4
Moderate	Element with orientation is not locked (WCAG criterion undetermined) [sia-r59]	Undetermined	4
Moderate	Element has required aria-owns (WCAG 1.3.1) [sia-r46]	WCAG 2.0 A	3
Moderate	Element has required owned roles (WCAG 1.3.1) [sia-r64]	WCAG 2.0 A	3
Moderate	First focusable element is link to main content (WCAG criterion undetermined) [sia-r87]	Undetermined	3
Moderate	Input purpose can be determined (WCAG criterion undetermined) [sia-r60]	Undetermined	3
Moderate	Keyboard trap does not exist (WCAG criterion undetermined) [sia-r85]	Undetermined	3
Moderate	Tables are used for tabular data, not layout (WCAG criterion undetermined) [sia-r40]	Undetermined	3
Moderate	Table cell has header (WCAG 1.3.1) [sia-r77]	WCAG 2.0 A	2
Moderate	Focus is not lost after interaction (WCAG criterion undetermined) [sia-r86]	Undetermined	2
Moderate	Assertive live region is marked as atomic (WCAG criterion undetermined) [sia-r54]	Undetermined	2
Moderate	aria-hidden element is not exposed to assistive technology (WCAG 1.3.1) [sia-r45]	WCAG 2.0 A	1
Moderate	Link in text block is visually distinguishable without color (WCAG 1.4.1) [sia-r62]	WCAG 2.0 A	1
Moderate	Obsolete <blink> element (WCAG criterion undetermined) [blink-element]	Undetermined	1
Moderate	Document should not have more than one main landmark (WCAG criterion undetermined) [landmark-no-duplicate-main]	Best Practice	1
Moderate	Element role is consistent with ARIA landmark (WCAG criterion undetermined) [sia-r72]	Undetermined	1
Moderate	Main landmark should not be contained in another landmark (WCAG criterion undetermined) [landmark-main-is-top-level]	Best Practice	1
Minor	Elements marked as presentational should be consistently ignored (WCAG criterion undetermined) [presentation-role-conflict]	Best Practice	1
Minor	Tables should not have the same summary and caption (WCAG criterion undetermined) [table-duplicate-name]	Best Practice	1

Deque axe-core findings

Rule-level axe-core summary (38 rule type(s))

Each failing rule links out to the axe-core documentation. For full element-level detail including HTML snippets and XPaths, see the bug reports above.

axe-core rules failing in 2026-W40, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
All page content should be contained by landmarks [region]	moderate	1692	12172	/niosh/bulletin/2017/miners-cardio.html /niosh/bulletin/2020/hearing-loss-construction.html /mmwr/preview/mmwrhtml/00000450.htm	all 1692 pages (CSV)
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination [landmark-unique]	moderate	584	778	/niosh/bulletin/2017/miners-cardio.html /niosh/bulletin/2020/hearing-loss-construction.html /diabetes/es/caring/manejo-de-la-diabetes-en-la-escuela.html	all 584 pages (CSV)
Heading levels should only increase by one [heading-order]	moderate	512	688	/mmwr/preview/mmwrhtml/00000450.htm /mmwr/preview/mmwrhtml/00056637.htm /pcd/issues/2006/oct/05_0243_zhs.htm	all 512 pages (CSV)
Document should have one main landmark [landmark-one-main]	moderate	440	440	/mmwr/preview/mmwrhtml/00000450.htm /mmwr/preview/mmwrhtml/00056637.htm /pcd/issues/2007/apr/06_0073a.htm	all 440 pages (CSV)
<html> element must have a lang attribute [html-has-lang]	serious	340	340	/mmwr/preview/mmwrhtml/00000450.htm /mmwr/preview/mmwrhtml/00056637.htm /pcd/issues/2007/apr/06_0073a.htm	all 340 pages (CSV)
Images must have alternative text [image-alt]	critical	339	3979	/mmwr/preview/mmwrhtml/00000450.htm /mmwr/preview/mmwrhtml/00056637.htm /pcd/issues/2007/apr/06_0073a.htm	all 339 pages (CSV)
Elements must meet minimum color contrast ratio thresholds [color-contrast]	serious	309	474	/mmwr/preview/mmwrhtml/00000450.htm /mmwr/preview/mmwrhtml/00056637.htm /mmwr/preview/mmwrhtml/mm6118a8.htm	all 309 pages (CSV)
Page should contain a level-one heading [page-has-heading-one]	moderate	152	152	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /national-asthma-control-program/site.html	all 152 pages (CSV)
Links must have discernible text [link-name]	serious	141	444	/pcd/issues/2007/apr/06_0073a.htm /pcd/issues/2006/oct/05_0243_zhs.htm /pcd/issues/2011/nov/10_0197_es.htm	all 141 pages (CSV)
The skip-link target should exist and be focusable [skip-link]	moderate	104	105	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /mumps/hcp/clinical-signs/index.html	all 104 pages (CSV)
Form elements should have a visible label [label-title-only]	serious	95	95	/pcd/issues/2006/oct/05_0243_zhs.htm /pcd/issues/2011/nov/10_0197_es.htm /pcd/issues/2009/jan/07_0242_zhs.htm	all 95 pages (CSV)
Elements should not have tabindex greater than zero [tabindex]	serious	93	279	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /mumps/hcp/clinical-signs/index.html	all 93 pages (CSV)
Contentinfo landmark should not be contained in another landmark [landmark-contentinfo-is-top-level]	moderate	93	93	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /mumps/hcp/clinical-signs/index.html	all 93 pages (CSV)
Document should not have more than one banner landmark [landmark-no-duplicate-banner]	moderate	93	93	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /mumps/hcp/clinical-signs/index.html	all 93 pages (CSV)
Document should not have more than one contentinfo landmark [landmark-no-duplicate-contentinfo]	moderate	93	93	/viral-hemorrhagic-fevers/hcp/diagnosis-testing/index.html /cryptococcosis /mumps/hcp/clinical-signs/index.html	all 93 pages (CSV)
Form elements must have labels [label]	critical	81	93	/mmwr/preview/mmwrhtml/mm6118a8.htm /mmwr/preview/mmwrhtml/mm6311a5.htm /mmwr/preview/mmwrhtml/mm6040a8.htm	all 81 pages (CSV)
ARIA role should be appropriate for the element [aria-allowed-role]	minor	78	92	/niosh/publications/es/numbered/2006-110sp.html /spanish/NIOSH/docs/2007-133_sp /niosh/publications/numbered/2014-149.html	all 78 pages (CSV)
Links must be distinguishable without relying on color [link-in-text-block]	serious	43	43	/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html /grants/applying/eligibility.html /infection-control/hcp/environmental-infection-control-guidelines/executive-summary.html	all 43 pages (CSV)
Table header text should not be empty [empty-table-header]	minor	34	113	/pcd/issues/2007/apr/06_0073a.htm /pcd/issues/2004/jan/03_0012.htm /pcd/issues/2006/jan/05_0088.htm	all 34 pages (CSV)
Frames must have an accessible name [frame-title]	serious	28	57	/heads-up/guidelines/returning-to-school.html /coca/hcp/trainings/ah5n1-virus-clinicians-healthcare-centers.html /stophivtogether/prepared/index.html	all 28 pages (CSV)
Headings should not be empty [empty-heading]	minor	22	37	/other/plugins/index.html /mmwr/preview/mmwrhtml/mm5319a2.htm /mmwr/preview/mmwrhtml/mm5401a2.htm	all 22 pages (CSV)
Scrollable region must have keyboard access [scrollable-region-focusable]	serious	19	39	/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html /hepatitis/statistics/2020surveillance/hepatitis-c/table-3.7.htm /asthma-data/nhis/2022-standard-errors-current-population-estimates-age.html	all 19 pages (CSV)
scope attribute should be used correctly [scope-attr-valid]	moderate	11	57	/healthcare-associated-infections/php/preventing-mdros/mdro-prevention-strategies.html /acip/evidence-to-recommendations/influenza-older-adults-etr.html /brfss/annual_data/2010/summary_matrix_10.htm	all 11 pages (CSV)
Table cell headers attributes must refer to other <th> elements in the same table [td-headers-attr]	serious	11	13	/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html /brfss/acbs/2012/prevalence_tables/table6.html /asthma/healthcare-use/2013/table_b.html	all 11 pages (CSV)
ARIA commands must have an accessible name [aria-command-name]	serious	10	208	/hepatitis-surveillance-2023/hepatitis-c/figure-3-8.html /hepatitis-surveillance-2022/hepatitis-b/figure-2-6.html /hepatitis/php/npr-2023/hep-c-reduce-infections.html	all 10 pages (CSV)
Interactive controls must not be nested [nested-interactive]	serious	9	34	/nchs/products/vsrr.htm /tobacco/campaign/tips/spanish/poblaciones/indoamericanos-o-nativos-de-alaska.html /stophivtogether/hiv-treatment/index.html	all 9 pages (CSV)
Select element must have an accessible name [select-name]	critical	7	17	/mmwr/preview/mmwrhtml/mm6325a4.htm /nchs/hus/data-finder.htm /nchs/pressroom/calendar/2026_schedule.htm	all 7 pages (CSV)
<ul> and <ol> must only directly contain <li>, <script> or <template> elements [list]	serious	6	6	/mmwr/preview/mmwrhtml/00038946.htm /mmwr/preview/mmwrhtml/00017197.htm /wtc/federal_register.html	all 6 pages (CSV)
Elements must only use permitted ARIA attributes [aria-prohibited-attr]	serious	6	6	/stophivtogether/hiv-stigma/index.html /stophivtogether/hiv-treatment/index.html /stophivtogether/hiv-stigma/index.html	all 6 pages (CSV)
<li> elements must be contained in a <ul> or <ol> [listitem]	serious	4	36	/zika/hcp/diagnosis-testing/placental-and-fetal-tissue-specimens.html /national-asthma-control-program/php/partners/kentucky.html /group-b-strep/prevention/index.html	all 4 pages (CSV)
<blink> elements are deprecated and must not be used [blink]	serious	4	5	/mmwr/preview/mmwrhtml/rr5202a2.htm /mmwr/preview/mmwrhtml/rr5009a1.htm /mmwr/preview/mmwrhtml/mm5640a7.htm	all 4 pages (CSV)
Elements marked as presentational should be consistently ignored [presentation-role-conflict]	minor	1	4	/niosh/npptl/topics/respirators/cel	all 1 pages (CSV)
Certain ARIA roles must contain particular children [aria-required-children]	critical	1	2	/stophivtogether/hiv-testing/self-testing.html	all 1 pages (CSV)
Main landmark should not be contained in another landmark [landmark-main-is-top-level]	moderate	1	1	/nhsn/faqs/cms/faq_cms_hai.html	all 1 pages (CSV)
Document should not have more than one main landmark [landmark-no-duplicate-main]	moderate	1	1	/nhsn/faqs/cms/faq_cms_hai.html	all 1 pages (CSV)
Documents must have <title> element to aid in navigation [document-title]	serious	1	1	/nchs/pressroom/stat/index.html	all 1 pages (CSV)
Buttons must have discernible text [button-name]	critical	1	1	/hiv/treatment/index.html	all 1 pages (CSV)
Tables should not have the same summary and caption [table-duplicate-name]	minor	1	1	/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table12.html	all 1 pages (CSV)

Siteimprove Alfa findings

Rule-level Alfa summary (35 rule type(s))

Rule-level summary from Siteimprove Alfa (W3C ACT-based). Findings that overlap with axe-core on the same WCAG success criterion are noted as possible duplicates in the bug reports above.

Alfa rules failing in 2026-W40, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111]	n/a	416	12037	/niosh/publications/es/numbered/2006-110sp.html /mmwr/volumes/72/wr/mm7216a1.htm /cryptococcosis	all 416 pages (CSV)
Text has enhanced contrast [sia-r66]	n/a	355	10203	/niosh/publications/es/numbered/2006-110sp.html /mmwr/volumes/72/wr/mm7216a1.htm /cryptococcosis	all 355 pages (CSV)
Scrolling content can be accessed by keyboard [sia-r57]	n/a	307	4119	/niosh/publications/es/numbered/2006-110sp.html /mmwr/volumes/72/wr/mm7216a1.htm /cryptococcosis	all 307 pages (CSV)
aria attribute is permitted for element role [sia-r18]	n/a	222	278	/niosh/publications/es/numbered/2006-110sp.html /cryptococcosis /media/releases/2025/2025-certain-metabolic-meals-home-delivery-foods-reported-in-ongoing-salmonella-outbreak-investigation.html	all 222 pages (CSV)
Link is distinguishable without relying on color [sia-r74]	n/a	192	935	/niosh/publications/es/numbered/2006-110sp.html /cryptococcosis /pcd/issues/2013/12_0096.htm	all 192 pages (CSV)
Target size is at least 24×24 CSS pixels or has spacing (Minimum) [sia-r113]	n/a	155	1476	/pcd/issues/2013/12_0096.htm /mmwr/preview/mmwrhtml/mm5050a3.htm /pcd/issues/2004/jan/03_0012.htm	all 155 pages (CSV)
Text has sufficient color contrast (Enhanced) [sia-r69]	n/a	154	837	/cryptococcosis /media/releases/2025/2025-certain-metabolic-meals-home-delivery-foods-reported-in-ongoing-salmonella-outbreak-investigation.html /nora/councils/construction.html	all 154 pages (CSV)
Headings are structured hierarchically [sia-r53]	n/a	136	184	/mmwr/volumes/72/wr/mm7216a1.htm /pcd/issues/2013/12_0096.htm /mmwr/preview/mmwrhtml/mm5050a3.htm	all 136 pages (CSV)
Text has minimum contrast ratio of 4.5:1 [sia-r73]	n/a	130	21730	/pcd/issues/2013/12_0096.htm /mmwr/preview/mmwrhtml/mm5050a3.htm /pcd/issues/2004/jan/03_0012.htm	all 130 pages (CSV)
No obsolete or deprecated elements are used [sia-r70]	n/a	102	102	/mmwr/preview/mmwrhtml/mm5050a3.htm /pcd/issues/2004/jan/03_0012.htm /mmwr/preview/mmwrhtml/mm6150a2.htm	all 102 pages (CSV)
Document has a valid lang attribute [sia-r4]	n/a	85	85	/mmwr/preview/mmwrhtml/mm5050a3.htm /pcd/issues/2004/jan/03_0012.htm /mmwr/preview/mmwrhtml/mm5639md.htm	all 85 pages (CSV)
Image has accessible name [sia-r2]	n/a	84	891	/mmwr/preview/mmwrhtml/mm5050a3.htm /pcd/issues/2004/jan/03_0012.htm /mmwr/preview/mmwrhtml/mm5639md.htm	all 84 pages (CSV)
Form field label is visible [sia-r61]	n/a	59	59	/cryptococcosis /pcd/issues/2013/12_0096.htm /vaccines/hcp/imz-schedules/index.html	all 59 pages (CSV)
Presentational children of an element are not focusable [sia-r68]	n/a	45	460	/pcd/issues/2013/12_0096.htm /nchs/nhanes/about-data/index.html /diabetes/es/diabetes-complications/la-diabetes-y-la-salud-oral.html	all 45 pages (CSV)
Accessible name of link or button matches visible label [sia-r14]	n/a	43	90	/niosh/publications/es/numbered/2006-110sp.html /nora/councils/construction.html /active-communities-tool/php/about	all 43 pages (CSV)
Link has accessible name [sia-r11]	n/a	33	85	/niosh/publications/es/numbered/2006-110sp.html /pcd/issues/2004/jan/03_0012.htm /az/j.html	all 33 pages (CSV)
Scrollable element is keyboard accessible [sia-r80]	n/a	27	44	/cryptococcosis /vaccines/hcp/imz-schedules/index.html /immigrant-refugee-health/about/cdc-role-in-immigration.html	all 27 pages (CSV)
Table header has scope [sia-r78]	n/a	26	36	/pcd/issues/2013/12_0096.htm /sleeping-sickness/hcp/clinical-care/index.html /mmwr/volumes/65/wr/mm6536e2.htm	all 26 pages (CSV)
Form field has accessible name [sia-r8]	n/a	23	24	/mmwr/preview/mmwrhtml/mm6150a2.htm /mmwr/preview/mmwrhtml/mm5943a4.htm /mmwr/preview/mmwrhtml/mm6248a3.htm	all 23 pages (CSV)
Duplicate role landmark is labeled [sia-r79]	n/a	9	20	/mmwr/preview/mmwrhtml/00052499.htm /mmwr/preview/mmwrhtml/00051718.htm /mmwr/preview/mmwrhtml/00053391.htm	all 9 pages (CSV)
Component with same name serves same purpose [sia-r90]	n/a	6	19	/nchs/products/vsrr.htm /tobacco/campaign/tips/spanish/poblaciones/indoamericanos-o-nativos-de-alaska.html /stophivtogether/hiv-treatment/index.html	all 6 pages (CSV)
Button has accessible name [sia-r12]	n/a	4	22	/hepatitis/statistics/2021surveillance/hepatitis-a/figure-1.6.htm /stophivtogether/hiv-treatment/index.html /ncbddd/birthdefects/data.html	all 4 pages (CSV)
Element with orientation is not locked [sia-r59]	n/a	4	4	/diabetes/programs/preventt2/pledge.html /mmwr/volumes/66/wr/mm6619md.htm /pcd/issues/2008/apr/07_0249a.htm	all 4 pages (CSV)
Element has required aria-owns [sia-r46]	n/a	3	45	/brfss/acbs/2012/prevalence_tables/table6.html /asthma/nhis/08/table4-1.htm /hepatitis/statistics/2021surveillance/hepatitis-c/table-3.5.htm	all 3 pages (CSV)
Input purpose can be determined [sia-r60]	n/a	3	3	/pcd/issues/2013/12_0096.htm /pcd/issues/2013/12_0161_es.htm /pcd/issues/2012/11_0096_es.htm	all 3 pages (CSV)
First focusable element is link to main content [sia-r87]	n/a	3	3	/diabetes/programs/preventt2/pledge.html /pcd/issues/2008/apr/07_0249a.htm /flu/weekly/weeklyarchives2024-2025/data/iliage35.html	all 3 pages (CSV)
Keyboard trap does not exist [sia-r85]	n/a	3	3	/han/2023/han00488.html /han/2023/han00487.html /han/2024/han00518.html	all 3 pages (CSV)
Element has required owned roles [sia-r64]	n/a	3	3	/mmwr/preview/mmwrhtml/mm5324a6.htm /niosh/idlh/criteria.html /mmwr/preview/mmwrhtml/mm5644a1.htm	all 3 pages (CSV)
Tables are used for tabular data, not layout [sia-r40]	n/a	3	3	/orr/data-research/index.html /nchs/pressroom/stats_of_the_states.htm /healthy-water-data/documentation/cryptosporidiosis-nndss-summary-report-for-2018.html	all 3 pages (CSV)
Table cell has header [sia-r77]	n/a	2	23	/pcd/issues/2004/jan/03_0012.htm /fluview/surveillance/2025-week-33.html	all 2 pages (CSV)
Focus is not lost after interaction [sia-r86]	n/a	2	15	/mmwr/volumes/70/wr/mm7040e3.htm /nchs/healthy_people/hp2020/progress-tables.htm	all 2 pages (CSV)
Assertive live region is marked as atomic [sia-r54]	n/a	2	2	/hepatitis/statistics/2021surveillance/hepatitis-a/figure-1.6.htm /ncbddd/birthdefects/data.html	all 2 pages (CSV)
aria-hidden element is not exposed to assistive technology [sia-r45]	n/a	1	320	/brfss/acbs/2012/prevalence_tables/table6.html	all 1 pages (CSV)
Link in text block is visually distinguishable without color [sia-r62]	n/a	1	4	/tobacco/campaign/tips/groups/general-public.html	all 1 pages (CSV)
Element role is consistent with ARIA landmark [sia-r72]	n/a	1	1	/nchs/healthy_people/hp2020/progress-tables.htm	all 1 pages (CSV)

Unique accessibility issues (axe + Alfa consolidated)

axe and Alfa both implement W3C ACT rules, so the same issue is often caught by both. These are deduplicated by ACT rule and page, so a shared finding counts once (8104 raw engine findings → 7870 unique).

Unique issues (rule × page): 7870
Caught by both engines: 233 highest confidence
axe only: 5226
Alfa only: 2411

9 rule type(s) caught by both engines — highest confidence

Two independent ACT-rule implementations (Deque axe-core and Siteimprove Alfa) flagged the same issue on the same pages. Agreement between separate engines is strong evidence the barrier is real, not a single-tool false positive — the best place to start.

Rules flagged by both axe-core and Alfa in 2026-W40, by pages affected.
Issue	Pages	Rule references
<html> element must have a lang attribute	340	axe html-has-lang · Alfa sia-r4 · ACT b5c3f8
Images must have alternative text	339	axe image-alt · Alfa sia-r2 · ACT 23a2a8
Elements must only use permitted ARIA attributes	226	axe aria-prohibited-attr · Alfa sia-r18 · ACT 5c01ea
Links must have discernible text	141	axe link-name · Alfa sia-r11 · ACT c487ae
Form elements must have labels	87	axe label · Alfa sia-r8 · ACT e086e5
Headings should not be empty	22	axe empty-heading · Alfa sia-r64 · ACT ffd0e9
ARIA commands must have an accessible name	13	axe aria-command-name · Alfa sia-r12 · ACT 97a4e1
Table cell headers attributes must refer to other <th> elements in the same table	11	axe td-headers-attr · Alfa sia-r45 · ACT a25f45
Elements marked as presentational should be consistently ignored	3	axe presentation-role-conflict · Alfa sia-r86 · ACT 46ca7f