data.cms.gov: Accessibility — week 2026-W33

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
1.4.8	WCAG 1.4.8	1196	2
2.5.5	WCAG 2.5.5	1167	1
1.4.3	Contrast (Minimum)	708	2
1.4.6	WCAG 1.4.6	701	1
2.1.1	Keyboard Access	687	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
Banner landmark should not be contained in another landmark · unattributed component Fix one place, resolve ~1422 finding(s) on 1422 page(s). XPath / selector: `.Header` `<header class="Header" style="position: sticky;">`	Moderate	1422	Requires manual testing.	Put the banner landmark (<header>) at the top level, not nested inside another landmark.	pages (CSV)	Decision Assigned to Notes
Scrollable region must have keyboard access · unattributed component Fix one place, resolve ~687 finding(s) on 687 page(s). XPath / selector: `.tbody-container` `<div class="tbody-container">`	Serious	687	Without vision, Limited manipulation/strength, Limited reach	Make scrollable regions keyboard-focusable (tabindex="0") so keyboard users can scroll them.	pages (CSV)	Decision Assigned to Notes
First focusable element is link to main content · unattributed component Fix one place, resolve ~701 finding(s) on 701 page(s). XPath / selector: `{"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys`	Moderate	701	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r87	pages (CSV)	Decision Assigned to Notes
Select element must have an accessible name · unattributed component Fix one place, resolve ~128 finding(s) on 128 page(s). XPath / selector: `.form-control` `<select name="version-select" class="form-control">`	Critical	128	Without vision, Limited vision, Limited manipulation/strength	Give the <select> an accessible name via a <label> or aria-label.	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~697 finding(s) on 697 page(s). XPath / selector: `<a href="/search" title="">`	Moderate	697	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~697 finding(s) on 697 page(s). XPath / selector: `<a href="/tools" title="">`	Moderate	697	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~697 finding(s) on 697 page(s). XPath / selector: `<a href="/browse-data-categories" title="">`	Moderate	697	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
aria-hidden element does not contain focusable elements · unattributed component Fix one place, resolve ~355 finding(s) on 355 page(s). XPath / selector: `<div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">`	Moderate	355	Without vision, Limited vision, Limited manipulation/strength	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17	pages (CSV)	Decision Assigned to Notes
aria-hidden element does not contain focusable elements · unattributed component Fix one place, resolve ~702 finding(s) on 351 page(s). XPath / selector: `<div id="tooltip-trigger--101" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">`	Moderate	351	Without vision, Limited vision, Limited manipulation/strength	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~470 finding(s) on 470 page(s). XPath / selector: `<a class="ally-skip-link" href="#main-content">`	Moderate	470	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes

Bug reports

17 issue type(s) are shown by default out of 36 total. Prioritized by severity, key pages, WCAG level, and prevalence; use the toggle to show everything.

Overall severity mix: 2 critical, 10 serious, 22 moderate, 2 minor. By WCAG category: 15 WCAG 2.0 A, 2 WCAG 2.0 AA, 1 WCAG 2.1 A, 1 WCAG 2.2 AA, 4 WCAG 2.x AAA, 6 Best Practice, 7 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.

Default view shows 17 prioritized issue type(s); 19 more are available if you switch to "Show everything".

Findings needing review

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

Serious axe scrollable-region-focusable WCAG 2.0 A Scrollable region must have keyboard access (WCAG 2.1.1) 687/2891 pages · 687 instances Likely template

Bug ID: VS-eaab37ac
Pattern ID: VS-c613c153
Combined ID: VS-eaab37ac (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: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: .tbody-container
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<div class="tbody-container">

Description

Scrollable region must have keyboard access. Detected by axe-core rule scrollable-region-focusable on 687 of 2891 scanned pages (687 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: .tbody-container
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

…and more — all 687 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: 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

Critical axe select-name WCAG 2.0 A Select element must have an accessible name (WCAG 4.1.2) 129/2891 pages · 129 instances Likely template

Bug ID: VS-b21d1758
Pattern ID: VS-fab92378
Combined ID: VS-b21d1758 (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: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: .form-control
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<select name="version-select" class="form-control">

Description

Select element must have an accessible name. Detected by axe-core rule select-name on 129 of 2891 scanned pages (129 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: .form-control
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

…and more — all 129 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 <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 color-contrast WCAG 2.0 AA Elements must meet minimum color contrast ratio thresholds (WCAG 1.4.3) 12/2891 pages · 139 instances Likely template

Bug ID: VS-4036026c
Pattern ID: VS-be8d563e
Combined ID: VS-4036026c (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://data.cms.gov/provider-data/datasets?theme%5B0%5D=Physician+office+visit+costs
XPath / selector: a[aria-describedby="tooltip-trigger--326"]
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<a aria-describedby="tooltip-trigger--326" class="ds-c-tooltip__trigger dkan-disabled-link" tabindex="0">

Description

Elements must meet minimum color contrast ratio thresholds. Detected by axe-core rule color-contrast on 12 of 2891 scanned pages (139 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/datasets?theme%5B0%5D=Physician+office+visit+costs.
Locate the element: a[aria-describedby="tooltip-trigger--326"]
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

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.

Drupal tip: Check your Drupal theme's base CSS. Themes like Olivero and Bartik have contrast issues in default color schemes — override failing color pairs in your subtheme's style.css.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/color-contrast?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) 12/2891 pages · 94 instances Likely template

Bug ID: VS-db9ba530
Pattern ID: VS-8ade3360
Combined ID: VS-db9ba530 (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: https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology
XPath / selector: #RichTextField-f6f014c6-2809-4bf4-b03f-1ab7a7b62c4e > p > a[target="_blank"][rel="noopener noreferrer"]
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<a href="https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/PhysicianFeedbackProgram/Downloads/Detailed-Methodology-for-the-2018-Value-Modifier-and-2016-Quality-and-Resource-Use-Report-.pdf

Description

Links must be distinguishable without relying on color. Detected by axe-core rule link-in-text-block on 12 of 2891 scanned pages (94 instances).

Steps to reproduce

Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
Locate the element: #RichTextField-f6f014c6-2809-4bf4-b03f-1ab7a7b62c4e > p > a[target="_blank"][rel="noopener noreferrer"]
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

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 listitem WCAG 2.0 A <li> elements must be contained in a <ul> or <ol> (WCAG 1.3.1) 10/2891 pages · 43 instances Likely template

Bug ID: VS-b4999ba9
Pattern ID: VS-6175596b
Combined ID: VS-b4999ba9 (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: https://data.cms.gov/provider-data/topics/doctors-clinicians
XPath / selector: .dc-c-search-list-item.ds-u-padding-top--3:nth-child(1)
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<li class="dc-c-search-list-item ds-u-padding-top--3">

Description

<li> elements must be contained in a <ul> or <ol>. Detected by axe-core rule listitem on 10 of 2891 scanned pages (43 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/doctors-clinicians.
Locate the element: .dc-c-search-list-item.ds-u-padding-top--3:nth-child(1)
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

Critical axe label WCAG 2.0 A Form elements must have labels (WCAG 4.1.2) 8/2891 pages · 14 instances

Bug ID: VS-5fde38a2
Pattern ID: VS-fafffee0
Combined ID: VS-5fde38a2 (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://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool
XPath / selector: #react-select-2-input
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<input class="InteractiveToolsSear..." autocapitalize="none" autocomplete="off" autocorrect="off" id="react-select-2-input" spellcheck="false" tabindex="0" type="text" aria-autocomplete="list" aria-ex

Description

Form elements must have labels. Detected by axe-core rule label on 8 of 2891 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
Locate the element: #react-select-2-input
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

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.

Drupal tip: Use Drupal's form element "Label" setting. In Webform, every element has a Label field — ensure it's not empty or hidden. Check that twig templates don't strip <label> elements from form fields.

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

Triage status Notes

Serious axe role-img-alt WCAG 2.0 A [role="img"] elements must have alternative text (WCAG 1.1.1) 5/2891 pages · 14 instances

Bug ID: VS-d631bd29
Pattern ID: VS-ede1e565
Combined ID: VS-d631bd29 (pattern VS-ede1e565) — 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 — [role="img"] elements must have alternative text [role-img-alt]
Example URL: https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug
XPath / selector: canvas
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;"></canvas>

Description

[role="img"] elements must have alternative text. Detected by axe-core rule role-img-alt on 5 of 2891 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug.
Locate the element: canvas
Confirm the axe-core finding for rule role-img-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

Testing environment

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

Suggested fix

How to fix: Elements with role="img" need an accessible name via aria-label or aria-labelledby.

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

Triage status Notes

Serious axe svg-img-alt WCAG 2.0 A <svg> elements with an img role must have alternative text (WCAG 1.1.1) 1/2891 pages · 10 instances Likely content

Bug ID: VS-25969f65
Pattern ID: VS-cc981723
Combined ID: VS-25969f65 (pattern VS-cc981723) — 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 — <svg> elements with an img role must have alternative text [svg-img-alt]
Example URL: https://data.cms.gov/provider-data
XPath / selector: path[fill="#7350A3"]
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<path role="graphics-symbol" fill="#7350A3" d="M2,-154.154A154.167,154.167,0,0,1,115.054,-102.615L13.742,-14.589A20.042,20.042,0,0,0,2,-19.942Z" style="cursor: initial;"></path>

Description

Steps to reproduce

Open https://data.cms.gov/provider-data.
Locate the element: path[fill="#7350A3"]
Confirm the axe-core finding for rule svg-img-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

/provider-data

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 <svg> with an image role an accessible name (<title> or aria-label).

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/svg-img-alt?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) 1/2891 pages · 1 instances Likely content

Bug ID: VS-69190b96
Pattern ID: VS-a0bdbdf6
Combined ID: VS-69190b96 (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: https://data.cms.gov/provider-data/datasets?+Gynecology=&keyword%5B%5D=Obstetrics+
XPath / selector: ol[data-testid="results-list"]
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<ol class="dc-dataset-search-list ds-u-padding--0 ds-u-margin-top--0 ds-u-margin-bottom--4 ds-u-display--block" data-testid="results-list">

Description

<ul> and <ol> must only directly contain <li>, <script> or <template> elements. Detected by axe-core rule list on 1 of 2891 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/datasets?+Gynecology=&keyword%5B%5D=Obstetrics+.
Locate the element: ol[data-testid="results-list"]
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

/provider-data/datasets

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-command-name WCAG 2.0 A ARIA commands must have an accessible name (WCAG 4.1.2) 1/2891 pages · 1 instances Likely content

Bug ID: VS-e71d7143
Pattern ID: VS-5c82bd60
Combined ID: VS-e71d7143 (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: https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems
XPath / selector: .p-dropdown-trigger
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<div class="p-dropdown-trigger" role="button" aria-haspopup="listbox" aria-expanded="false" data-pc-section="trigger">

Description

ARIA commands must have an accessible name. Detected by axe-core rule aria-command-name on 1 of 2891 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems.
Locate the element: .p-dropdown-trigger
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

/provider-data/birthing-friendly-hospitals-and-health-systems

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 aria-prohibited-attr WCAG 2.0 A Elements must only use permitted ARIA attributes (WCAG 4.1.2) 1/2891 pages · 1 instances Likely content

Bug ID: VS-3d192113
Pattern ID: VS-ebb1c464
Combined ID: VS-3d192113 (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://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations
XPath / selector: .ExpandIcon__wrapper
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<div class="ExpandIcon__wrapper" title="Expand" aria-label="Expand">

Description

Elements must only use permitted ARIA attributes. Detected by axe-core rule aria-prohibited-attr on 1 of 2891 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations.
Locate the element: .ExpandIcon__wrapper
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

/medicare-shared-savings-program/accountable-care-organizations

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 label-title-only Best Practice Form elements should have a visible label (WCAG criterion undetermined) 7/2891 pages · 11 instances

Bug ID: VS-a78ba437
Pattern ID: VS-33841929
Combined ID: VS-a78ba437 (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: https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool
XPath / selector: #react-select-2-input
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<input class="InteractiveToolsSear..." autocapitalize="none" autocomplete="off" autocorrect="off" id="react-select-2-input" spellcheck="false" tabindex="0" type="text" aria-autocomplete="list" aria-ex

Description

Form elements should have a visible label. Detected by axe-core rule label-title-only on 7 of 2891 scanned pages (11 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
Locate the element: #react-select-2-input
Confirm the axe-core finding for rule label-title-only.

Impact

Not captured by automated scan — requires manual testing.

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/label-title-only?application=axeAPI

Triage status Notes

Moderate alfa sia-r69 WCAG 2.0 AA Text has sufficient color contrast (Enhanced) (WCAG 1.4.3) 696/2891 pages · 8573 instances Likely template

Bug ID: VS-8305d82a
Pattern ID: VS-f7e99f4b
Combined ID: VS-8305d82a (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://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: text: "A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services."
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Text has sufficient color contrast (Enhanced). Detected by Siteimprove Alfa rule sia-r69 on 696 of 2891 scanned pages (8573 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: text: "A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services."
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 696 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-r17 WCAG 2.0 A aria-hidden element does not contain focusable elements (WCAG 4.1.2) 359/2891 pages · 1724 instances Likely template

Bug ID: VS-f89134a5
Pattern ID: VS-f6cf30ff
Combined ID: VS-f89134a5 (pattern VS-f6cf30ff) — 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 — aria-hidden element does not contain focusable elements [sia-r17]
Example URL: https://data.cms.gov/provider-data/dataset/95rg-2usp?page=4
XPath / selector: <div id="tooltip-trigger--101" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

aria-hidden element does not contain focusable elements. Detected by Siteimprove Alfa rule sia-r17 on 359 of 2891 scanned pages (1724 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/dataset/95rg-2usp?page=4.
Locate the element: <div id="tooltip-trigger--101" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">
Confirm the Siteimprove Alfa finding for rule sia-r17 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 359 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-r17

Triage status Notes

Moderate alfa sia-r8 WCAG 2.0 A Form field has accessible name (WCAG 4.1.2) 64/2891 pages · 67 instances Likely template

Bug ID: VS-67464fc7
Pattern ID: VS-a48e6078
Combined ID: VS-67464fc7 (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: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: <select name="version-select" class="form-control">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Form field has accessible name. Detected by Siteimprove Alfa rule sia-r8 on 64 of 2891 scanned pages (67 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: <select name="version-select" class="form-control">
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

…and more — all 64 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: Associate the form field with a label.

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

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) 18/2891 pages · 51 instances Likely template

Bug ID: VS-8b17d48b
Pattern ID: VS-179ad9b3
Combined ID: VS-8b17d48b (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://data.cms.gov/resources/medicare-part-d-prescribers-by-provider-and-drug-data-dictionary
XPath / selector: <button class="selected" aria-label="card 1">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Target size is at least 24×24 CSS pixels or has spacing (Minimum). Detected by Siteimprove Alfa rule sia-r113 on 18 of 2891 scanned pages (51 instances).

Steps to reproduce

Open https://data.cms.gov/resources/medicare-part-d-prescribers-by-provider-and-drug-data-dictionary.
Locate the element: <button class="selected" aria-label="card 1">
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

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-r68 WCAG 2.0 A Presentational children of an element are not focusable (WCAG 1.3.1) 18/2891 pages · 18 instances Likely template

Bug ID: VS-aa7751f6
Pattern ID: VS-d6097011
Combined ID: VS-aa7751f6 (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://data.cms.gov/summary-statistics-on-beneficiary-enrollment/health-insurance-marketplace/health-insurance-exchanges-monthly-effectuated-enrollment
XPath / selector: <ul class="list-container__list list-container__list-right">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Presentational children of an element are not focusable. Detected by Siteimprove Alfa rule sia-r68 on 18 of 2891 scanned pages (18 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment/health-insurance-marketplace/health-insurance-exchanges-monthly-effectuated-enrollment.
Locate the element: <ul class="list-container__list list-container__list-right">
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

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 axe landmark-banner-is-top-level Best Practice Banner landmark should not be contained in another landmark (WCAG criterion undetermined) 1422/2891 pages · 1422 instances Likely template

Bug ID: VS-37c9e032
Pattern ID: VS-30db094d
Combined ID: VS-37c9e032 (pattern VS-30db094d) — 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 — Banner landmark should not be contained in another landmark [landmark-banner-is-top-level]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: .Header
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<header class="Header" style="position: sticky;">

Description

Banner landmark should not be contained in another landmark. Detected by axe-core rule landmark-banner-is-top-level on 1422 of 2891 scanned pages (1422 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: .Header
Confirm the axe-core finding for rule landmark-banner-is-top-level.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 1422 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: Put the banner landmark (<header>) at the top level, not nested inside another landmark.

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

Triage status Notes

Moderate alfa sia-r73 WCAG 2.x AAA Text has minimum contrast ratio of 4.5:1 (WCAG 1.4.8) 1171/2891 pages · 16988 instances Likely template

Bug ID: VS-7e99f89c
Pattern ID: VS-2208081b
Combined ID: VS-7e99f89c (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://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: <p class="usa-banner__header-text">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Text has minimum contrast ratio of 4.5:1. Detected by Siteimprove Alfa rule sia-r73 on 1171 of 2891 scanned pages (16988 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: <p class="usa-banner__header-text">
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 1171 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 alfa sia-r111 WCAG 2.x AAA Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5) 1167/2891 pages · 28493 instances Likely template

Bug ID: VS-a9d5b108
Pattern ID: VS-cb53cc4d
Combined ID: VS-a9d5b108 (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://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: <a href="/search" title="">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 1167 of 2891 scanned pages (28493 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: <a href="/search" title="">
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 1167 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) 701/2891 pages · 20906 instances Likely template

Bug ID: VS-97a54bd1
Pattern ID: VS-646b1e0b
Combined ID: VS-97a54bd1 (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://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: text: "Back to dataset overview"
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 701 of 2891 scanned pages (20906 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: text: "Back to dataset overview"
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 701 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-r87 Undetermined First focusable element is link to main content (WCAG criterion undetermined) 701/2891 pages · 701 instances Likely template

Bug ID: VS-de689671
Pattern ID: VS-aa242c2d
Combined ID: VS-de689671 (pattern VS-aa242c2d) — 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 — First focusable element is link to main content [sia-r87]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

First focusable element is link to main content. Detected by Siteimprove Alfa rule sia-r87 on 701 of 2891 scanned pages (701 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r87.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 701 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-r87

Triage status Notes

Moderate axe heading-order Best Practice Heading levels should only increase by one (WCAG criterion undetermined) 310/2891 pages · 379 instances Likely template

Bug ID: VS-32eef4c9
Pattern ID: VS-d25f622d
Combined ID: VS-32eef4c9 (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://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: .apiDocsContainer.container:nth-child(1) > .row > .col > h3
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<h3>Dataset Information</h3>

Description

Heading levels should only increase by one. Detected by axe-core rule heading-order on 310 of 2891 scanned pages (379 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: .apiDocsContainer.container:nth-child(1) > .row > .col > h3
Confirm the axe-core finding for rule heading-order.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 310 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.

Drupal tip: Drupal Views and blocks can insert headings at arbitrary levels. In the Views UI, set "Title tag" for each display. For block titles, configure the heading level in the block's layout settings.

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

Triage status Notes

Moderate alfa sia-r18 Undetermined aria attribute is permitted for element role (WCAG criterion undetermined) 191/2891 pages · 804 instances Likely template

Bug ID: VS-eb852c30
Pattern ID: VS-e05344b9
Combined ID: VS-eb852c30 (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://data.cms.gov/resources/mcbs-summary-tables-glossary
XPath / selector: @aria-label="Open Income and Asset Ownership"
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

aria attribute is permitted for element role. Detected by Siteimprove Alfa rule sia-r18 on 191 of 2891 scanned pages (804 instances).

Steps to reproduce

Open https://data.cms.gov/resources/mcbs-summary-tables-glossary.
Locate the element: @aria-label="Open Income and Asset Ownership"
Confirm the Siteimprove Alfa finding for rule sia-r18.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 191 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-r53 Undetermined Headings are structured hierarchically (WCAG criterion undetermined) 162/2891 pages · 197 instances Likely template

Bug ID: VS-5dea806d
Pattern ID: VS-f054f4a4
Combined ID: VS-5dea806d (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://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: <h3>
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Headings are structured hierarchically. Detected by Siteimprove Alfa rule sia-r53 on 162 of 2891 scanned pages (197 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
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 162 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-r74 WCAG 2.x AAA Link is distinguishable without relying on color (WCAG 1.4.8) 25/2891 pages · 25 instances Likely template

Bug ID: VS-c6f3f865
Pattern ID: VS-fbf54eba
Combined ID: VS-c6f3f865 (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://data.cms.gov/summary-statistics-on-beneficiary-enrollment
XPath / selector: <p class="typeface-body-16pt-black-l TopicHero__desc">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Link is distinguishable without relying on color. Detected by Siteimprove Alfa rule sia-r74 on 25 of 2891 scanned pages (25 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment.
Locate the element: <p class="typeface-body-16pt-black-l TopicHero__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

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 landmark-unique Best Practice Landmarks should have a unique role or role/label/title (i.e. accessible name) c (WCAG criterion undetermined) 18/2891 pages · 18 instances Likely template

Bug ID: VS-cb448647
Pattern ID: VS-8806389c
Combined ID: VS-cb448647 (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: https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard
XPath / selector: .desktop
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<nav aria-label="breadcrumb" class="DatasetHero__breadcrumb desktop">

Description

Landmarks should have a unique role or role/label/title (i.e. accessible name) c. Detected by axe-core rule landmark-unique on 18 of 2891 scanned pages (18 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard.
Locate the element: .desktop
Confirm the axe-core finding for rule landmark-unique.

Impact

Not captured by automated scan — requires manual testing.

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: 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 alfa sia-r78 Undetermined Table header has scope (WCAG criterion undetermined) 7/2891 pages · 180 instances

Bug ID: VS-a693f90a
Pattern ID: VS-2cd767ca
Combined ID: VS-a693f90a (pattern VS-2cd767ca) — 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 — Table header has scope [sia-r78]
Example URL: https://data.cms.gov/summary-statistics-on-beneficiary-enrollment
XPath / selector: <h5 class="typeface-05-h5-desktop-regular-white MoreTopicCarouselCard__count">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Table header has scope. Detected by Siteimprove Alfa rule sia-r78 on 7 of 2891 scanned pages (180 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment.
Locate the element: <h5 class="typeface-05-h5-desktop-regular-white MoreTopicCarouselCard__count">
Confirm the Siteimprove Alfa finding for rule sia-r78.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

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-r78

Triage status Notes

Moderate alfa sia-r90 WCAG 2.0 A Component with same name serves same purpose (WCAG 4.1.2) 5/2891 pages · 8 instances

Bug ID: VS-c14ced9a
Pattern ID: VS-a2a3dffb
Combined ID: VS-c14ced9a (pattern VS-a2a3dffb) — 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 — Component with same name serves same purpose [sia-r90]
Example URL: https://data.cms.gov/summary-statistics-on-beneficiary-enrollment
XPath / selector: <div aria-selected="true" aria-label="slide" role="option" class="slide___3-Nqo slideHorizontal___1NzNV carousel__slide carousel__slide--visible MoreTopicCarousel__slide">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Component with same name serves same purpose. Detected by Siteimprove Alfa rule sia-r90 on 5 of 2891 scanned pages (8 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment.
Locate the element: <div aria-selected="true" aria-label="slide" role="option" class="slide___3-Nqo slideHorizontal___1NzNV carousel__slide carousel__slide--visible MoreTopicCarousel__slide">
Confirm the Siteimprove Alfa finding for rule sia-r90 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

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r90

Triage status Notes

Moderate alfa sia-r59 Undetermined Element with orientation is not locked (WCAG criterion undetermined) 4/2891 pages · 4 instances

Bug ID: VS-574481d8
Pattern ID: VS-7fbb8b20
Combined ID: VS-574481d8 (pattern VS-7fbb8b20) — 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 — Element with orientation is not locked [sia-r59]
Example URL: https://data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/july-17-2026
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W28, last seen 2026-W33 (6 wk)

Description

Element with orientation is not locked. Detected by Siteimprove Alfa rule sia-r59 on 4 of 2891 scanned pages (4 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/july-17-2026.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r59.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

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-r59

Triage status Notes

Minor axe empty-table-header Best Practice Table header text should not be empty (WCAG criterion undetermined) 4/2891 pages · 9 instances

Bug ID: VS-7fb0a240
Pattern ID: VS-d69fc059
Combined ID: VS-7fb0a240 (pattern VS-d69fc059) — 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 — Table header text should not be empty [empty-table-header]
Example URL: https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology
XPath / selector: .ArticleSection__component-container:nth-child(5) > .DynamicTable > .container > .row > .offset-lg-3.col > .DynamicTable__inner > .DynamicTable__table-wrapper > .DynamicTable__table > thead > tr > .default-header:nth-child(1)
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<th class="CellRenderer__cell default-header" style="width: 114px;"><div id="RichTextField-477e13f8-6830-4ede-b4f3-ac4b5cd86e52" class="RichTextField"> </div></th>

Description

Table header text should not be empty. Detected by axe-core rule empty-table-header on 4 of 2891 scanned pages (9 instances).

Steps to reproduce

Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
Locate the element: .ArticleSection__component-container:nth-child(5) > .DynamicTable > .container > .row > .offset-lg-3.col > .DynamicTable__inner > .DynamicTable__table-wrapper > .DynamicTable__table > thead > tr > .default-header:nth-child(1)
Confirm the axe-core finding for rule empty-table-header.

Impact

Not captured by automated scan — requires manual testing.

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/empty-table-header?application=axeAPI

Triage status Notes

Moderate alfa sia-r2 WCAG 2.0 A Image has accessible name (WCAG 1.1.1) 3/2891 pages · 6 instances

Bug ID: VS-207cb39a
Pattern ID: VS-a24eaa8c
Combined ID: VS-207cb39a (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://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug
XPath / selector: <canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;">
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

Description

Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 3 of 2891 scanned pages (6 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug.
Locate the element: <canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;">
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

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

Minor axe empty-heading Best Practice Headings should not be empty (WCAG criterion undetermined) 3/2891 pages · 3 instances

Bug ID: VS-7409bf80
Pattern ID: VS-0066c67d
Combined ID: VS-7409bf80 (pattern VS-0066c67d) — 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 — Headings should not be empty [empty-heading]
Example URL: https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care
XPath / selector: h2:nth-child(27)
History: first seen 2026-W24, last seen 2026-W33 (10 wk)

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

<h2 id="hospital-harm"><span>&nbsp;</span></h2>

Description

Headings should not be empty. Detected by axe-core rule empty-heading on 3 of 2891 scanned pages (3 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care.
Locate the element: h2:nth-child(27)
Confirm the axe-core finding for rule empty-heading.

Impact

Not captured by automated scan — requires manual testing.

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: Remove empty headings or give them text. Don't use heading tags for spacing.

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

Triage status Notes

Moderate alfa sia-r57 Undetermined Scrolling content can be accessed by keyboard (WCAG criterion undetermined) 2/2891 pages · 89111 instances Likely content

Bug ID: VS-3afdf6f4
Pattern ID: VS-c18be945
Combined ID: VS-3afdf6f4 (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://data.cms.gov/tools/mapping-medicare-disparities-by-population
XPath / selector: text: "Population View"
History: first seen 2026-W24, last seen 2026-W33 (9 wk)

Description

Scrolling content can be accessed by keyboard. Detected by Siteimprove Alfa rule sia-r57 on 2 of 2891 scanned pages (89111 instances).

Steps to reproduce

Open https://data.cms.gov/tools/mapping-medicare-disparities-by-population.
Locate the element: text: "Population View"
Confirm the Siteimprove Alfa finding for rule sia-r57.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

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 deprecated-html presentational-attr Undetermined Presentational attribute (use CSS) (WCAG criterion undetermined) 2/2891 pages · 39 instances Likely content

Bug ID: VS-087be756
Pattern ID: VS-04a9d28c
Combined ID: VS-087be756 (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: https://data.cms.gov/provider-data/topics/hospice-care/measures
XPath / selector: table
History: first seen 2026-W24, last seen 2026-W33 (9 wk)

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

<table cellpadding="0" cellspacing="0" class="table"><thead><tr><th><strong><span>Measure ID</span></strong></th><th><strong><span>Quality Measure Name</span></strong></th><th><strong><span>Technical

Description

Presentational attribute (use CSS). Detected by deprecated-html rule presentational-attr on 2 of 2891 scanned pages (39 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospice-care/measures.
Locate the element: table
Confirm the deprecated-html finding for rule presentational-attr.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

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 alfa sia-r14 WCAG 2.1 A Accessible name of link or button matches visible label (WCAG 2.5.3) 2/2891 pages · 24 instances Likely content

Bug ID: VS-db688ef0
Pattern ID: VS-f7dba940
Combined ID: VS-db688ef0 (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://data.cms.gov/tools
XPath / selector: <a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
History: first seen 2026-W24, last seen 2026-W33 (9 wk)

Description

Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 2 of 2891 scanned pages (24 instances).

Steps to reproduce

Open https://data.cms.gov/tools.
Locate the element: <a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
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

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

Deque axe-core findings

Rule-level axe-core summary (17 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-W33, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
Banner landmark should not be contained in another landmark [landmark-banner-is-top-level]	moderate	1422	1422	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /medicare-current-beneficiary-survey-mcbs/income-and-asset-ownership/data	all 1422 pages (CSV)
Scrollable region must have keyboard access [scrollable-region-focusable]	serious	687	687	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /medicare-current-beneficiary-survey-mcbs/income-and-asset-ownership/data /provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-change-of-ownership/data/q4-2024	all 687 pages (CSV)
Heading levels should only increase by one [heading-order]	moderate	310	379	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /summary-statistics-on-use-and-payments/medicare-medicaid-service-type-reports/medicare-telehealth-trends/api-docs	all 310 pages (CSV)
Select element must have an accessible name [select-name]	critical	129	129	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /summary-statistics-on-use-and-payments/medicare-medicaid-service-type-reports/medicare-telehealth-trends/api-docs	all 129 pages (CSV)
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination [landmark-unique]	moderate	18	18	/tools/medicare-part-d-drug-spending-dashboard /tools/provider-opt-out-affidavits-look-up-tool /tools/medicaid-managed-care-dashboard	all 18 pages (CSV)
Elements must meet minimum color contrast ratio thresholds [color-contrast]	serious	12	139	/provider-data/datasets /provider-data/datasets /provider-data/datasets	all 12 pages (CSV)
Links must be distinguishable without relying on color [link-in-text-block]	serious	12	94	/resources/2018-value-modifier-performance-year-2016-methodology /resources/independent-dispute-resolution-methodology /summary-statistics-on-use-and-payments/physiciansupplier-procedure-summary	all 12 pages (CSV)
<li> elements must be contained in a <ul> or <ol> [listitem]	serious	10	43	/provider-data/topics/doctors-clinicians /provider-data/topics/long-term-care-hospitals /provider-data/topics/physician-office-visit-costs	all 10 pages (CSV)
Form elements must have labels [label]	critical	8	14	/tools/medicare-part-d-prescriber-look-up-tool /tools/provider-opt-out-affidavits-look-up-tool /tools/market-saturation-utilization-state-county-mapping-tool	all 8 pages (CSV)
Form elements should have a visible label [label-title-only]	serious	7	11	/tools/medicare-part-d-prescriber-look-up-tool /tools/provider-opt-out-affidavits-look-up-tool /tools/market-saturation-utilization-state-county-mapping-tool	all 7 pages (CSV)
[role="img"] elements must have alternative text [role-img-alt]	serious	5	14	/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug / /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk	all 5 pages (CSV)
Table header text should not be empty [empty-table-header]	minor	4	9	/resources/2018-value-modifier-performance-year-2016-methodology /provider-data/topics/nursing-homes/quality-measures /provider-data/topics/home-health-services/measuring-agency-performance	all 4 pages (CSV)
Headings should not be empty [empty-heading]	minor	3	3	/provider-data/topics/hospitals/timely-effective-care /provider-data/dataset/0b1a-da3f /provider-compliance/independent-dispute-resolution	all 3 pages (CSV)
<svg> elements with an img role must have alternative text [svg-img-alt]	serious	1	10	/provider-data	all 1 pages (CSV)
Elements must only use permitted ARIA attributes [aria-prohibited-attr]	serious	1	1	/medicare-shared-savings-program/accountable-care-organizations	all 1 pages (CSV)
<ul> and <ol> must only directly contain <li>, <script> or <template> elements [list]	serious	1	1	/provider-data/datasets	all 1 pages (CSV)
ARIA commands must have an accessible name [aria-command-name]	serious	1	1	/provider-data/birthing-friendly-hospitals-and-health-systems	all 1 pages (CSV)

Siteimprove Alfa findings

Rule-level Alfa summary (18 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-W33, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
Text has minimum contrast ratio of 4.5:1 [sia-r73]	n/a	1171	16988	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /provider-data/dataset/95rg-2usp	all 1171 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111]	n/a	1167	28493	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /provider-data/dataset/95rg-2usp	all 1167 pages (CSV)
Text has enhanced contrast [sia-r66]	n/a	701	20906	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs	all 701 pages (CSV)
First focusable element is link to main content [sia-r87]	n/a	701	701	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs	all 701 pages (CSV)
Text has sufficient color contrast (Enhanced) [sia-r69]	n/a	696	8573	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs	all 696 pages (CSV)
aria-hidden element does not contain focusable elements [sia-r17]	n/a	359	1724	/provider-data/dataset/95rg-2usp /provider-data/dataset/6jpm-sxkc /provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits	all 359 pages (CSV)
aria attribute is permitted for element role [sia-r18]	n/a	191	804	/resources/mcbs-summary-tables-glossary /resources/public-reporting-of-missing-digital-contact-information-data-dictionary /provider-summary-by-type-of-service/medicare-inpatient-hospitals/medicare-inpatient-hospitals-by-provider	all 191 pages (CSV)
Headings are structured hierarchically [sia-r53]	n/a	162	197	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /summary-statistics-on-beneficiary-enrollment	all 162 pages (CSV)
Form field has accessible name [sia-r8]	n/a	64	67	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /cms-innovation-center-programs/accountable-care-models/next-generation-accountable-care-organization-model-data/api-docs	all 64 pages (CSV)
Link is distinguishable without relying on color [sia-r74]	n/a	25	25	/summary-statistics-on-beneficiary-enrollment /tools/medicare-part-d-drug-spending-dashboard /tools/medicaid-managed-care-dashboard	all 25 pages (CSV)
Target size is at least 24×24 CSS pixels or has spacing (Minimum) [sia-r113]	n/a	18	51	/resources/medicare-part-d-prescribers-by-provider-and-drug-data-dictionary /resources/medicare-part-b-spending-by-drug-data-dictionary /resources/opt-out-affidavits-methodology	all 18 pages (CSV)
Presentational children of an element are not focusable [sia-r68]	n/a	18	18	/summary-statistics-on-beneficiary-enrollment/health-insurance-marketplace/health-insurance-exchanges-monthly-effectuated-enrollment /cms-innovation-center-programs/disease-episode-based-payment-models/medicare-diabetes-prevention-program /summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-part-b-spending-by-drug	all 18 pages (CSV)
Table header has scope [sia-r78]	n/a	7	180	/summary-statistics-on-beneficiary-enrollment /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk /sitemap	all 7 pages (CSV)
Component with same name serves same purpose [sia-r90]	n/a	5	8	/summary-statistics-on-beneficiary-enrollment /summary-statistics-on-provider-enrollment /provider-compliance	all 5 pages (CSV)
Element with orientation is not locked [sia-r59]	n/a	4	4	/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/july-17-2026 /resources/medicare-geographic-variation-by-national-state-county-data-dictionary /provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/july-14-2026	all 4 pages (CSV)
Image has accessible name [sia-r2]	n/a	3	6	/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk /summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-b-spending-by-drug	all 3 pages (CSV)
Scrolling content can be accessed by keyboard [sia-r57]	n/a	2	89111	/tools/mapping-medicare-disparities-by-population /tools/mapping-disparities-by-social-determinants-of-health	all 2 pages (CSV)
Accessible name of link or button matches visible label [sia-r14]	n/a	2	24	/tools /provider-data/topics	all 2 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 (7927 raw engine findings → 7859 unique).

Unique issues (rule × page): 7859
Caught by both engines: 68 highest confidence
axe only: 2563
Alfa only: 5228

3 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-W33, by pages affected.
Issue	Pages	Rule references
Elements must only use permitted ARIA attributes	191	axe aria-prohibited-attr · Alfa sia-r18 · ACT 5c01ea
Select element must have an accessible name	137	axe select-name · Alfa sia-r8 · ACT e086e5
[role="img"] elements must have alternative text	5	axe role-img-alt · Alfa sia-r2 · ACT 23a2a8