vital-scans open quality ledger

data.cms.gov: Accessibility — week 2026-W39

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.

SCCriterionPagesRulesNotes
1.4.8 WCAG 1.4.8 1310 2
2.5.5 WCAG 2.5.5 1278 1
1.4.3 Contrast (Minimum) 780 2
2.1.1 Keyboard Access 773 1
1.4.6 WCAG 1.4.6 771 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.
ClusterSeverityPagesWho it affectsHow to fixEvidenceDecision
Banner landmark should not be contained in another landmark · unattributed component
Fix one place, resolve ~1502 finding(s) on 1502 page(s).
XPath / selector: .Header
<header class="Header" style="position: sticky;">
 Moderate 1502 Requires manual testing. Put the banner landmark (<header>) at the top level, not nested inside another landmark. pages (CSV)
Scrollable region must have keyboard access · unattributed component
Fix one place, resolve ~773 finding(s) on 773 page(s).
XPath / selector: .tbody-container
<div class="tbody-container">
 Serious 773 Without vision, Limited manipulation/strength, Limited reach Make scrollable regions keyboard-focusable (tabindex="0") so keyboard users can scroll them. pages (CSV)
First focusable element is link to main content · unattributed component
Fix one place, resolve ~771 finding(s) on 771 page(s).
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
 Moderate 771 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r87 pages (CSV)
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)
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component
Fix one place, resolve ~768 finding(s) on 768 page(s).
XPath / selector: <a href="/search" title="">
 Moderate 768 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component
Fix one place, resolve ~768 finding(s) on 768 page(s).
XPath / selector: <a href="/tools" title="">
 Moderate 768 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component
Fix one place, resolve ~768 finding(s) on 768 page(s).
XPath / selector: <a href="/browse-data-categories" title="">
 Moderate 768 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111 pages (CSV)
aria-hidden element does not contain focusable elements · unattributed component
Fix one place, resolve ~382 finding(s) on 382 page(s).
XPath / selector: <div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">
 Moderate 382 Without vision, Limited vision, Limited manipulation/strength See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17 pages (CSV)
aria-hidden element does not contain focusable elements · unattributed component
Fix one place, resolve ~380 finding(s) on 380 page(s).
XPath / selector: <div aria-labelledby="api__tab" aria-hidden="true" class="ds-c-tabs__panel" id="api">
 Moderate 380 Without vision, Limited vision, Limited manipulation/strength See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17 pages (CSV)
aria-hidden element does not contain focusable elements · unattributed component
Fix one place, resolve ~348 finding(s) on 348 page(s).
XPath / selector: <div aria-labelledby="data-dictionary__tab" aria-hidden="true" class="ds-c-tabs__panel" id="data-dictionary">
 Moderate 348 Without vision, Limited vision, Limited manipulation/strength See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17 pages (CSV)

Bug reports

17 issue type(s) are shown by default out of 37 total. Prioritized by severity, key pages, WCAG level, and prevalence; use the toggle to show everything.

Overall severity mix: 2 critical, 10 serious, 23 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, 8 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); 20 more are available if you switch to "Show everything".

1 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 scrollable-region-focusable WCAG 2.0 A Scrollable region must have keyboard access (WCAG 2.1.1) 773/3077 pages · 773 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)
XPath / selector
.tbody-container
History
first seen 2026-W24, last seen 2026-W39 (16 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 773 of 3077 scanned pages (773 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
  2. Locate the element: .tbody-container
  3. 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 773 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

Critical axe select-name WCAG 2.0 A Select element must have an accessible name (WCAG 4.1.2) 129/3077 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)
XPath / selector
.form-control
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (129 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: .form-control
  3. 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

Serious axe color-contrast WCAG 2.0 AA Elements must meet minimum color contrast ratio thresholds (WCAG 1.4.3) 12/3077 pages · 139 instances Likely template
Bug ID
VS-50fa3ec2
Pattern ID
VS-be8d563e
Combined ID
VS-50fa3ec2 (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)
XPath / selector
.dc-c-search-list-item.ds-u-padding-top--3:nth-child(1) > .dc-c-searchlist-item.ds-u-border-top--1 > .ds-u-flex-direction--row.ds-u-md-justify-content--start.ds-u-margin-x--0 > .ds-u-padding-x--0:nth-child(3) > .dkan-disabled-link-wrapper.ds-u-text-align--left.ds-l-col--4 > .ds-c-tooltip__container > .ds-c-tooltip__trigger.dkan-disabled-link
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

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

<a 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 3077 scanned pages (139 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/datasets?theme%5B0%5D=Physician+office+visit+costs.
  2. Locate the element: .dc-c-search-list-item.ds-u-padding-top--3:nth-child(1) > .dc-c-searchlist-item.ds-u-border-top--1 > .ds-u-flex-direction--row.ds-u-md-justify-content--start.ds-u-margin-x--0 > .ds-u-padding-x--0:nth-child(3) > .dkan-disabled-link-wrapper.ds-u-text-align--left.ds-l-col--4 > .ds-c-tooltip__container > .ds-c-tooltip__trigger.dkan-disabled-link
  3. 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

Serious axe link-in-text-block WCAG 2.0 A Links must be distinguishable without relying on color (WCAG 1.4.1) 11/3077 pages · 91 instances Likely template
Bug ID
VS-55e0111a
Pattern ID
VS-8ade3360
Combined ID
VS-55e0111a (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)
XPath / selector
#RichTextField-f2dafb7b-906e-4098-889e-3be9031a8f88 > p > a[target="_blank"][rel="noopener noreferrer"]
History
first seen 2026-W24, last seen 2026-W39 (16 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 11 of 3077 scanned pages (91 instances).

Steps to reproduce

  1. Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
  2. Locate the element: #RichTextField-f2dafb7b-906e-4098-889e-3be9031a8f88 > p > a[target="_blank"][rel="noopener noreferrer"]
  3. 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

Serious axe listitem WCAG 2.0 A <li> elements must be contained in a <ul> or <ol> (WCAG 1.3.1) 9/3077 pages · 38 instances
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)
XPath / selector
.dc-c-search-list-item.ds-u-padding-top--3:nth-child(1)
History
first seen 2026-W24, last seen 2026-W39 (16 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 9 of 3077 scanned pages (38 instances).

Steps to reproduce

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

Critical axe label WCAG 2.0 A Form elements must have labels (WCAG 4.1.2) 7/3077 pages · 13 instances
Bug ID
VS-0f45403d
Pattern ID
VS-fafffee0
Combined ID
VS-0f45403d (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)
XPath / selector
#react-select-2-input
History
first seen 2026-W24, last seen 2026-W39 (16 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 7 of 3077 scanned pages (13 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools/provider-opt-out-affidavits-look-up-tool.
  2. Locate the element: #react-select-2-input
  3. 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

Serious axe role-img-alt WCAG 2.0 A [role="img"] elements must have alternative text (WCAG 1.1.1) 5/3077 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)
XPath / selector
canvas
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (14 instances).

Steps to reproduce

  1. Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug.
  2. Locate the element: canvas
  3. 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

Serious axe svg-img-alt WCAG 2.0 A <svg> elements with an img role must have alternative text (WCAG 1.1.1) 1/3077 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)
XPath / selector
path[fill="#7350A3"]
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

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

<path role="graphics-symbol" fill="#7350A3" d="M2,-154.154A154.167,154.167,0,0,1,114.185,-103.582L13.618,-14.704A20.042,20.042,0,0,0,2,-19.942Z" style="cursor: initial;"></path>

Description

<svg> elements with an img role must have alternative text. Detected by axe-core rule svg-img-alt on 1 of 3077 scanned pages (10 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data.
  2. Locate the element: path[fill="#7350A3"]
  3. 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

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

Serious axe list WCAG 2.0 A <ul> and <ol> must only directly contain <li>, <script> or <template> elements (WCAG 1.3.1) 1/3077 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)
XPath / selector
ol[data-testid="results-list"]
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (1 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/datasets?+Gynecology=&keyword%5B%5D=Obstetrics+.
  2. Locate the element: ol[data-testid="results-list"]
  3. 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

Serious axe aria-command-name WCAG 2.0 A ARIA commands must have an accessible name (WCAG 4.1.2) 1/3077 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)
XPath / selector
.p-dropdown-trigger
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (1 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems.
  2. Locate the element: .p-dropdown-trigger
  3. 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

Serious axe aria-prohibited-attr WCAG 2.0 A Elements must only use permitted ARIA attributes (WCAG 4.1.2) 1/3077 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)
XPath / selector
.ExpandIcon__wrapper
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (1 instances).

Steps to reproduce

  1. Open https://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations.
  2. Locate the element: .ExpandIcon__wrapper
  3. 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

Serious axe label-title-only Best Practice Form elements should have a visible label (WCAG criterion undetermined) 6/3077 pages · 10 instances
Bug ID
VS-34ee71fd
Pattern ID
VS-33841929
Combined ID
VS-34ee71fd (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
XPath / selector
#react-select-2-input
History
first seen 2026-W24, last seen 2026-W39 (16 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 6 of 3077 scanned pages (10 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools/provider-opt-out-affidavits-look-up-tool.
  2. Locate the element: #react-select-2-input
  3. 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

Moderate alfa sia-r69 WCAG 2.0 AA Text has sufficient color contrast (Enhanced) (WCAG 1.4.3) 768/3077 pages · 9438 instances Likely template
Bug ID
VS-b99e7595
Pattern ID
VS-f7e99f4b
Combined ID
VS-b99e7595 (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)
XPath / selector
text: "GET"
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Text has sufficient color contrast (Enhanced). Detected by Siteimprove Alfa rule sia-r69 on 768 of 3077 scanned pages (9438 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: text: "GET"
  3. 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 768 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

Moderate alfa sia-r17 WCAG 2.0 A aria-hidden element does not contain focusable elements (WCAG 4.1.2) 384/3077 pages · 1112 instances Likely template
Bug ID
VS-726af0ec
Pattern ID
VS-f6cf30ff
Combined ID
VS-726af0ec (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)
XPath / selector
<div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

aria-hidden element does not contain focusable elements. Detected by Siteimprove Alfa rule sia-r17 on 384 of 3077 scanned pages (1112 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/dataset/medrec?page=3.
  2. Locate the element: <div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">
  3. 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 384 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

Moderate alfa sia-r8 WCAG 2.0 A Form field has accessible name (WCAG 4.1.2) 61/3077 pages · 64 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)
XPath / selector
<select name="version-select" class="form-control">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Form field has accessible name. Detected by Siteimprove Alfa rule sia-r8 on 61 of 3077 scanned pages (64 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: <select name="version-select" class="form-control">
  3. 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 61 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

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) 18/3077 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)
XPath / selector
<button class="selected" aria-label="card 1">
History
first seen 2026-W24, last seen 2026-W39 (16 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 3077 scanned pages (51 instances).

Steps to reproduce

  1. Open https://data.cms.gov/resources/medicare-part-d-prescribers-by-provider-and-drug-data-dictionary.
  2. Locate the element: <button class="selected" aria-label="card 1">
  3. 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

Moderate alfa sia-r68 WCAG 2.0 A Presentational children of an element are not focusable (WCAG 1.3.1) 15/3077 pages · 15 instances Likely template
Bug ID
VS-65df7376
Pattern ID
VS-d6097011
Combined ID
VS-65df7376 (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)
XPath / selector
<ul class="list-container__list list-container__list-right">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Presentational children of an element are not focusable. Detected by Siteimprove Alfa rule sia-r68 on 15 of 3077 scanned pages (15 instances).

Steps to reproduce

  1. Open https://data.cms.gov/cms-innovation-center-programs/cms-innovation-models-overview/innovation-center-model-summary-information.
  2. Locate the element: <ul class="list-container__list list-container__list-right">
  3. 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

Moderate axe landmark-banner-is-top-level Best Practice Banner landmark should not be contained in another landmark (WCAG criterion undetermined) 1502/3077 pages · 1502 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
XPath / selector
.Header
History
first seen 2026-W24, last seen 2026-W39 (16 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 1502 of 3077 scanned pages (1502 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
  2. Locate the element: .Header
  3. 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 1502 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

Moderate alfa sia-r73 WCAG 2.x AAA Text has minimum contrast ratio of 4.5:1 (WCAG 1.4.8) 1281/3077 pages · 18340 instances Likely template
Bug ID
VS-e3ddbca9
Pattern ID
VS-2208081b
Combined ID
VS-e3ddbca9 (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)
XPath / selector
<p class="usa-banner__header-text">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Text has minimum contrast ratio of 4.5:1. Detected by Siteimprove Alfa rule sia-r73 on 1281 of 3077 scanned pages (18340 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: <p class="usa-banner__header-text">
  3. 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 1281 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

Moderate alfa sia-r111 WCAG 2.x AAA Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5) 1278/3077 pages · 31960 instances Likely template
Bug ID
VS-5ab4a749
Pattern ID
VS-cb53cc4d
Combined ID
VS-5ab4a749 (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)
XPath / selector
<a href="/search" title="">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 1278 of 3077 scanned pages (31960 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: <a href="/search" title="">
  3. 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 1278 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

Moderate alfa sia-r66 WCAG 2.x AAA Text has enhanced contrast (WCAG 1.4.6) 771/3077 pages · 23366 instances Likely template
Bug ID
VS-e806f614
Pattern ID
VS-646b1e0b
Combined ID
VS-e806f614 (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)
XPath / selector
text: "1.0.0"
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 771 of 3077 scanned pages (23366 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: text: "1.0.0"
  3. 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 771 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

Moderate alfa sia-r87 Undetermined First focusable element is link to main content (WCAG criterion undetermined) 771/3077 pages · 771 instances Likely template
Bug ID
VS-9b21801f
Pattern ID
VS-aa242c2d
Combined ID
VS-9b21801f (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
XPath / selector
{"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

First focusable element is link to main content. Detected by Siteimprove Alfa rule sia-r87 on 771 of 3077 scanned pages (771 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
  3. Confirm the Siteimprove Alfa finding for rule sia-r87.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 771 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

Moderate axe heading-order Best Practice Heading levels should only increase by one (WCAG criterion undetermined) 315/3077 pages · 385 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
XPath / selector
.apiDocsContainer.container:nth-child(1) > .row > .col > h3
History
first seen 2026-W24, last seen 2026-W39 (16 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 315 of 3077 scanned pages (385 instances).

Steps to reproduce

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

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 315 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

Moderate alfa sia-r18 Undetermined aria attribute is permitted for element role (WCAG criterion undetermined) 199/3077 pages · 832 instances Likely template
Bug ID
VS-24233393
Pattern ID
VS-e05344b9
Combined ID
VS-24233393 (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
XPath / selector
@aria-label="Open Hospital Service Area"
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

aria attribute is permitted for element role. Detected by Siteimprove Alfa rule sia-r18 on 199 of 3077 scanned pages (832 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-inpatient-hospitals/medicare-inpatient-hospitals-by-provider.
  2. Locate the element: @aria-label="Open Hospital Service Area"
  3. Confirm the Siteimprove Alfa finding for rule sia-r18.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 199 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

Moderate alfa sia-r53 Undetermined Headings are structured hierarchically (WCAG criterion undetermined) 153/3077 pages · 182 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
XPath / selector
<h3>
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Headings are structured hierarchically. Detected by Siteimprove Alfa rule sia-r53 on 153 of 3077 scanned pages (182 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
  2. Locate the element: <h3>
  3. Confirm the Siteimprove Alfa finding for rule sia-r53.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 153 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

Moderate alfa sia-r74 WCAG 2.x AAA Link is distinguishable without relying on color (WCAG 1.4.8) 29/3077 pages · 29 instances Likely template
Bug ID
VS-422376a0
Pattern ID
VS-fbf54eba
Combined ID
VS-422376a0 (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)
XPath / selector
<p class="latestDateAvailable">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Link is distinguishable without relying on color. Detected by Siteimprove Alfa rule sia-r74 on 29 of 3077 scanned pages (29 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
  2. Locate the element: <p class="latestDateAvailable">
  3. 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 29 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

Moderate axe landmark-unique Best Practice Landmarks should have a unique role or role/label/title (i.e. accessible name) c (WCAG criterion undetermined) 24/3077 pages · 24 instances Likely template
Bug ID
VS-8d8aa5bf
Pattern ID
VS-8806389c
Combined ID
VS-8d8aa5bf (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
XPath / selector
.desktop
History
first seen 2026-W24, last seen 2026-W39 (16 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 24 of 3077 scanned pages (24 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
  2. Locate the element: .desktop
  3. 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

Moderate alfa sia-r78 Undetermined Table header has scope (WCAG criterion undetermined) 10/3077 pages · 179 instances Likely template
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
XPath / selector
<h5 class="typeface-05-h5-desktop-regular-white MoreTopicCarouselCard__count">
History
first seen 2026-W24, last seen 2026-W39 (16 wk)

Description

Table header has scope. Detected by Siteimprove Alfa rule sia-r78 on 10 of 3077 scanned pages (179 instances).

Steps to reproduce

  1. Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment.
  2. Locate the element: <h5 class="typeface-05-h5-desktop-regular-white MoreTopicCarouselCard__count">
  3. 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

Moderate alfa sia-r90 WCAG 2.0 A Component with same name serves same purpose (WCAG 4.1.2) 6/3077 pages · 7 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)
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-W39 (16 wk)

Description

Component with same name serves same purpose. Detected by Siteimprove Alfa rule sia-r90 on 6 of 3077 scanned pages (7 instances).

Steps to reproduce

  1. Open https://data.cms.gov/summary-statistics-on-beneficiary-enrollment.
  2. 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">
  3. 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

Minor axe empty-table-header Best Practice Table header text should not be empty (WCAG criterion undetermined) 4/3077 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
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-W39 (16 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-7bb77fb9-243e-4f9a-a2a3-275fa2a9d5c4" class="RichTextField"> </div></th>

Description

Table header text should not be empty. Detected by axe-core rule empty-table-header on 4 of 3077 scanned pages (9 instances).

Steps to reproduce

  1. Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
  2. 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)
  3. 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

Moderate alfa sia-r59 Undetermined Element with orientation is not locked (WCAG criterion undetermined) 3/3077 pages · 3 instances
Bug ID
VS-bfb57402
Pattern ID
VS-7fbb8b20
Combined ID
VS-bfb57402 (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
XPath / selector
{"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History
first seen 2026-W28, last seen 2026-W39 (12 wk)

Description

Element with orientation is not locked. Detected by Siteimprove Alfa rule sia-r59 on 3 of 3077 scanned pages (3 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/september-18-2026.
  2. Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
  3. 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

Moderate alfa sia-r61 Undetermined Form field label is visible (WCAG criterion undetermined) 3/3077 pages · 3 instances
Bug ID
VS-75071b72
Pattern ID
VS-7118fead
Combined ID
VS-75071b72 (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
XPath / selector
{"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History
first seen 2026-W24, last seen 2026-W39 (11 wk)

Description

Form field label is visible. Detected by Siteimprove Alfa rule sia-r61 on 3 of 3077 scanned pages (3 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/about/api.
  2. Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
  3. Confirm the Siteimprove Alfa finding for rule sia-r61.

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-r61

Moderate alfa sia-r57 Undetermined Scrolling content can be accessed by keyboard (WCAG criterion undetermined) 2/3077 pages · 97041 instances Likely content
Bug ID
VS-488fd3aa
Pattern ID
VS-c18be945
Combined ID
VS-488fd3aa (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
XPath / selector
text: "Population View"
History
first seen 2026-W24, last seen 2026-W39 (15 wk)

Description

Scrolling content can be accessed by keyboard. Detected by Siteimprove Alfa rule sia-r57 on 2 of 3077 scanned pages (97041 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools/mapping-disparities-by-social-determinants-of-health.
  2. Locate the element: text: "Population View"
  3. 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

Moderate deprecated-html presentational-attr Undetermined Presentational attribute (use CSS) (WCAG criterion undetermined) 2/3077 pages · 108 instances Likely content
Bug ID
VS-7a755db1
Pattern ID
VS-04a9d28c
Combined ID
VS-7a755db1 (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]
XPath / selector
table
History
first seen 2026-W24, last seen 2026-W39 (14 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</span></strong></th><th><strong><span>Technical Measu

Description

Presentational attribute (use CSS). Detected by deprecated-html rule presentational-attr on 2 of 3077 scanned pages (108 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/topics/inpatient-rehabilitation-facilities/measures.
  2. Locate the element: table
  3. 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.

Moderate alfa sia-r2 WCAG 2.0 A Image has accessible name (WCAG 1.1.1) 2/3077 pages · 8 instances · possible duplicate Likely content
Bug ID
VS-dc69ba3a
Pattern ID
VS-a24eaa8c
Combined ID
VS-dc69ba3a (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)
XPath / selector
<canvas role="img" height="239" width="239" style="display: block; box-sizing: border-box; height: 239px; width: 239px;">
History
first seen 2026-W24, last seen 2026-W39 (15 wk)
Possible duplicate
Same WCAG SC covered by axe report VS-25969f65 (pattern VS-cc981723). If axe and this engine flag the same element, the axe report takes precedence — mark this as duplicate in JIRA.

Description

Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 2 of 3077 scanned pages (8 instances).

Steps to reproduce

  1. Open https://data.cms.gov/beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk.
  2. Locate the element: <canvas role="img" height="239" width="239" style="display: block; box-sizing: border-box; height: 239px; width: 239px;">
  3. 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

Minor axe empty-heading Best Practice Headings should not be empty (WCAG criterion undetermined) 2/3077 pages · 2 instances Likely content
Bug ID
VS-9d9daeaa
Pattern ID
VS-0066c67d
Combined ID
VS-9d9daeaa (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
XPath / selector
h1
History
first seen 2026-W24, last seen 2026-W39 (14 wk)

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

<h1 class="stack-spacing skeleton-box" style="height: 50px; width: 200px;"></h1>

Description

Headings should not be empty. Detected by axe-core rule empty-heading on 2 of 3077 scanned pages (2 instances).

Steps to reproduce

  1. Open https://data.cms.gov/provider-data/topics/hospitals.
  2. Locate the element: h1
  3. 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

Moderate alfa sia-r14 WCAG 2.1 A Accessible name of link or button matches visible label (WCAG 2.5.3) 1/3077 pages · 14 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)
XPath / selector
<a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
History
first seen 2026-W24, last seen 2026-W39 (12 wk)

Description

Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 1 of 3077 scanned pages (14 instances).

Steps to reproduce

  1. Open https://data.cms.gov/tools.
  2. Locate the element: <a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
  3. 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

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-W39, by pages affected
RuleImpactPages affectedInstancesExample pagesAll affected
Banner landmark should not be contained in another landmark [landmark-banner-is-top-level] moderate 1502 1502 /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 1502 pages (CSV)
Scrollable region must have keyboard access [scrollable-region-focusable] serious 773 773 /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 773 pages (CSV)
Heading levels should only increase by one [heading-order] moderate 315 385 /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 315 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 24 24 /tools/medicare-part-d-prescriber-look-up-tool
/tools/medicare-part-d-drug-spending-dashboard
/tools/provider-opt-out-affidavits-look-up-tool		 all 24 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 11 91 /resources/2018-value-modifier-performance-year-2016-methodology
/summary-statistics-on-use-and-payments/physiciansupplier-procedure-summary
/resources/medicare-post-acute-care-hospice-by-provider-and-service-methodology		 all 11 pages (CSV)
<li> elements must be contained in a <ul> or <ol> [listitem] serious 9 38 /provider-data/topics/doctors-clinicians
/provider-data/topics/long-term-care-hospitals
/provider-data/topics/physician-office-visit-costs		 all 9 pages (CSV)
Form elements must have labels [label] critical 7 13 /tools/provider-opt-out-affidavits-look-up-tool
/tools/market-saturation-utilization-state-county-mapping-tool
/medicare-shared-savings-program/accountable-care-organizations		 all 7 pages (CSV)
Form elements should have a visible label [label-title-only] serious 6 10 /tools/provider-opt-out-affidavits-look-up-tool
/tools/market-saturation-utilization-state-county-mapping-tool
/tools/medicare-revalidation-list		 all 6 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 2 2 /provider-data/topics/hospitals
/provider-data/dataset/5hk7-b79m		 all 2 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 (19 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-W39, by pages affected
RuleImpactPages affectedInstancesExample pagesAll affected
Text has minimum contrast ratio of 4.5:1 [sia-r73] n/a 1281 18340 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
/provider-data/dataset/medrec
/provider-data/dataset/ijh5-nb2v		 all 1281 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111] n/a 1278 31960 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
/provider-data/dataset/medrec
/provider-data/dataset/ijh5-nb2v		 all 1278 pages (CSV)
Text has enhanced contrast [sia-r66] n/a 771 23366 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug/data
/provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs		 all 771 pages (CSV)
First focusable element is link to main content [sia-r87] n/a 771 771 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug/data
/provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs		 all 771 pages (CSV)
Text has sufficient color contrast (Enhanced) [sia-r69] n/a 768 9438 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug/data
/provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs		 all 768 pages (CSV)
aria-hidden element does not contain focusable elements [sia-r17] n/a 384 1112 /provider-data/dataset/medrec
/provider-data/dataset/ijh5-nb2v
/provider-data/dataset/covid-19_hcp		 all 384 pages (CSV)
aria attribute is permitted for element role [sia-r18] n/a 199 832 /provider-summary-by-type-of-service/medicare-inpatient-hospitals/medicare-inpatient-hospitals-by-provider
/cms-innovation-center-programs/cms-innovation-models-overview/innovation-center-model-summary-information
/provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits		 all 199 pages (CSV)
Headings are structured hierarchically [sia-r53] n/a 153 182 /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 153 pages (CSV)
Form field has accessible name [sia-r8] n/a 61 64 /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 61 pages (CSV)
Link is distinguishable without relying on color [sia-r74] n/a 29 29 /tools/medicare-part-d-prescriber-look-up-tool
/summary-statistics-on-beneficiary-enrollment
/medicare-current-beneficiary-survey-mcbs		 all 29 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/acos-aco-participants-and-snf-affiliates-methodology
/resources/medicare-physician-other-practitioners-by-provider-and-service-data-dictionary		 all 18 pages (CSV)
Presentational children of an element are not focusable [sia-r68] n/a 15 15 /cms-innovation-center-programs/cms-innovation-models-overview/innovation-center-model-summary-information
/cms-innovation-center-programs/disease-episode-based-payment-models/medicare-diabetes-prevention-program
/provider-characteristics/medicare-provider-supplier-enrollment/revoked-medicare-providers-and-suppliers		 all 15 pages (CSV)
Table header has scope [sia-r78] n/a 10 179 /summary-statistics-on-beneficiary-enrollment
/medicare-current-beneficiary-survey-mcbs
/cms-cross-program-data		 all 10 pages (CSV)
Component with same name serves same purpose [sia-r90] n/a 6 7 /summary-statistics-on-beneficiary-enrollment
/medicare-current-beneficiary-survey-mcbs
/cms-cross-program-data		 all 6 pages (CSV)
Element with orientation is not locked [sia-r59] n/a 3 3 /provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/september-18-2026
/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-physicians/data/july-31-2026
/provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/september-15-2026		 all 3 pages (CSV)
Form field label is visible [sia-r61] n/a 3 3 /provider-data/about/api
/provider-data/about/program-overview
/browse-data-categories		 all 3 pages (CSV)
Scrolling content can be accessed by keyboard [sia-r57] n/a 2 97041 /tools/mapping-disparities-by-social-determinants-of-health
/tools/mapping-medicare-disparities-by-hospital		 all 2 pages (CSV)
Image has accessible name [sia-r2] n/a 2 8 /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk
/browse-data-categories		 all 2 pages (CSV)
Accessible name of link or button matches visible label [sia-r14] n/a 1 14 /tools 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 (8558 raw engine findings → 8494 unique).

Unique issues (rule × page)
8494
Caught by both engines
64 highest confidence
axe only
2739
Alfa only
5691
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-W39, by pages affected.
IssuePagesRule references
Elements must only use permitted ARIA attributes199axe aria-prohibited-attr · Alfa sia-r18 · ACT 5c01ea
Select element must have an accessible name136axe select-name · Alfa sia-r8 · ACT e086e5
[role="img"] elements must have alternative text5axe role-img-alt · Alfa sia-r2 · ACT 23a2a8