vital-scans open quality ledger

data.medicaid.gov: Accessibility — week 2026-W40

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

Training priorities

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

SCCriterionPagesRulesNotes
1.4.8 WCAG 1.4.8 1029 1
2.5.5 WCAG 2.5.5 1029 1
4.1.2 Name, Role, Value (ARIA) 863 1
1.3.1 Info and Relationships (semantic structure) 84 2
2.5.3 WCAG 2.5.3 11 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
aria-hidden element does not contain focusable elements · unattributed component
Fix one place, resolve ~863 finding(s) on 863 page(s).
XPath / selector: <div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">
Moderate 863 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 ~863 finding(s) on 863 page(s).
XPath / selector: <div aria-labelledby="api__tab" aria-hidden="true" class="ds-c-tabs__panel" id="api">
Moderate 863 Without vision, Limited vision, Limited manipulation/strength See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component
Fix one place, resolve ~1029 finding(s) on 1029 page(s).
XPath / selector: <a href="/" title="Open Data">
Moderate 1029 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 ~1029 finding(s) on 1029 page(s).
XPath / selector: <button class="ds-c-button ds-c-button--ghost ds-u-lg-border--0 dkan-c-header-search--modal-button" type="button">
Moderate 1029 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 ~876 finding(s) on 876 page(s).
XPath / selector: <a class="dkan-c-header--link ds-c-button ds-c-button--ghost" href="/datasets">
Moderate 876 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111 pages (CSV)
Text has minimum contrast ratio of 4.5:1 · unattributed component
Fix one place, resolve ~1029 finding(s) on 1029 page(s).
XPath / selector: <p class="ds-c-usa-banner__header-text">
Moderate 1029 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73 pages (CSV)
Text has minimum contrast ratio of 4.5:1 · unattributed component
Fix one place, resolve ~1029 finding(s) on 1029 page(s).
XPath / selector: <p class="ds-c-usa-banner__action ds-u-align-items--center ds-u-md-display--none ds-u-display--flex">
Moderate 1029 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73 pages (CSV)
Text has minimum contrast ratio of 4.5:1 · unattributed component
Fix one place, resolve ~863 finding(s) on 863 page(s).
XPath / selector: <p class="ds-u-margin--0 ds-u-font-weight--bold">
Moderate 863 Requires manual testing. See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73 pages (CSV)
aria-hidden element does not contain focusable elements · unattributed component
Fix one place, resolve ~368 finding(s) on 368 page(s).
XPath / selector: <div aria-labelledby="data-dictionary__tab" aria-hidden="true" class="ds-c-tabs__panel" id="data-dictionary">
Moderate 368 Without vision, Limited vision, Limited manipulation/strength See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17 pages (CSV)
<ul> and <ol> must only directly contain <li>, <script> or <template> elements · unattributed component
Fix one place, resolve ~50 finding(s) on 50 page(s).
XPath / selector: ol[data-testid="results-list"]
<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">
Serious 50 Without vision, Limited vision, Limited cognitive, language, or learning ability Use <ul>/<ol> with only <li> children for lists; don't fake lists with <div>s. pages (CSV)

Bug reports

5 issue type(s) are shown by default out of 12 total. Prioritized by severity, key pages, WCAG level, and prevalence; use the toggle to show everything.

Overall severity mix: 2 serious, 10 moderate. By WCAG category: 4 WCAG 2.0 A, 1 WCAG 2.1 A, 2 WCAG 2.x AAA, 3 Best Practice, 2 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 5 prioritized issue type(s); 7 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.

Link to this finding Serious axe list WCAG 2.0 A <ul> and <ol> must only directly contain <li>, <script> or <template> elements (WCAG 1.3.1) 50/2550 pages · 50 instances Likely template
Bug ID
VS-6cd1600d
Pattern ID
VS-a0bdbdf6
Combined ID
VS-6cd1600d (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-W40 (17 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 50 of 2550 scanned pages (50 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/datasets?keyword%5B%5D=mltss.
  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

…and more — all 50 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 <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

Link to this finding Serious axe svg-img-alt WCAG 2.0 A <svg> elements with an img role must have alternative text (WCAG 1.1.1) 1/2550 pages · 10 instances Likely content
Bug ID
VS-5530ec8b
Pattern ID
VS-cc981723
Combined ID
VS-5530ec8b (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="#862074"]
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

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

<path role="graphics-symbol" fill="#862074" d="M2.5,-158.314A158.333,158.333,0,0,1,154.756,33.465L14.23,0.747A14.25,14.25,0,0,0,2.5,-14.029Z" style="cursor: pointer;"></path>

Description

<svg> elements with an img role must have alternative text. Detected by axe-core rule svg-img-alt on 1 of 2550 scanned pages (10 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/home.
  2. Locate the element: path[fill="#862074"]
  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

Link to this finding Moderate alfa sia-r17 WCAG 2.0 A aria-hidden element does not contain focusable elements (WCAG 4.1.2) 863/2550 pages · 2094 instances Likely template
Bug ID
VS-22cb2178
Pattern ID
VS-f6cf30ff
Combined ID
VS-22cb2178 (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-W40 (17 wk)

Description

aria-hidden element does not contain focusable elements. Detected by Siteimprove Alfa rule sia-r17 on 863 of 2550 scanned pages (2094 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/dataset/e3af839d-8175-5be0-b94e-4a302ed7a035?page=53.
  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 863 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

Link to this finding Moderate alfa sia-r68 WCAG 2.0 A Presentational children of an element are not focusable (WCAG 1.3.1) 34/2550 pages · 34 instances · possible duplicate Likely template
Bug ID
VS-18c49f9d
Pattern ID
VS-d6097011
Combined ID
VS-18c49f9d (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
<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">
History
first seen 2026-W24, last seen 2026-W40 (17 wk)
Possible duplicate
Same WCAG SC covered by axe report VS-6cd1600d (pattern VS-a0bdbdf6). If axe and this engine flag the same element, the axe report takes precedence — mark this as duplicate in JIRA.

Description

Presentational children of an element are not focusable. Detected by Siteimprove Alfa rule sia-r68 on 34 of 2550 scanned pages (34 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/datasets?keyword%5B0%5D=DQ+Atlas&page=3.
  2. Locate the element: <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">
  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

…and more — all 34 pages (CSV).

Testing environment

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

Suggested fix

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

Link to this finding Moderate alfa sia-r14 WCAG 2.1 A Accessible name of link or button matches visible label (WCAG 2.5.3) 11/2550 pages · 11 instances Likely template
Bug ID
VS-4944c17c
Pattern ID
VS-f7dba940
Combined ID
VS-4944c17c (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 class="dc-c-newtab" aria-label="link opens in a new tab" href="https://www.medicaid.gov/medicaid-and-chip-eligibility-operations-and-enrollment-snapshot" target="_blank">
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 11 of 2550 scanned pages (11 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/medicaid-chip-eligibility-enrollment-snapshot-data?page=36.
  2. Locate the element: <a class="dc-c-newtab" aria-label="link opens in a new tab" href="https://www.medicaid.gov/medicaid-and-chip-eligibility-operations-and-enrollment-snapshot" target="_blank">
  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

Link to this finding Moderate alfa sia-r111 WCAG 2.x AAA Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5) 1029/2550 pages · 30690 instances Likely template
Bug ID
VS-b080aabe
Pattern ID
VS-cb53cc4d
Combined ID
VS-b080aabe (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="/" title="Open Data">
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 1029 of 2550 scanned pages (30690 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/dataset/e3af839d-8175-5be0-b94e-4a302ed7a035?page=53.
  2. Locate the element: <a href="/" title="Open Data">
  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 1029 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

Link to this finding Moderate alfa sia-r73 WCAG 2.x AAA Text has minimum contrast ratio of 4.5:1 (WCAG 1.4.8) 1029/2550 pages · 8087 instances Likely template
Bug ID
VS-e21a8265
Pattern ID
VS-2208081b
Combined ID
VS-e21a8265 (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="ds-c-usa-banner__header-text">
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Text has minimum contrast ratio of 4.5:1. Detected by Siteimprove Alfa rule sia-r73 on 1029 of 2550 scanned pages (8087 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/dataset/e3af839d-8175-5be0-b94e-4a302ed7a035?page=53.
  2. Locate the element: <p class="ds-c-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 1029 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

Link to this finding Moderate alfa sia-r78 Undetermined Table header has scope (WCAG criterion undetermined) 23/2550 pages · 23 instances Likely template
Bug ID
VS-91fcf8cd
Pattern ID
VS-2cd767ca
Combined ID
VS-91fcf8cd (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
<h2 class="ds-c-alert__heading">
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

Description

Table header has scope. Detected by Siteimprove Alfa rule sia-r78 on 23 of 2550 scanned pages (23 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/datasets?keyword%5B0%5D=DQ+Atlas&page=3.
  2. Locate the element: <h2 class="ds-c-alert__heading">
  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

Link to this finding Moderate axe landmark-unique Best Practice Landmarks should have a unique role or role/label/title (i.e. accessible name) c (WCAG criterion undetermined) 5/2550 pages · 7 instances
Bug ID
VS-d1c9e587
Pattern ID
VS-8806389c
Combined ID
VS-d1c9e587 (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
.dkan-c-main-nav
History
first seen 2026-W24, last seen 2026-W40 (17 wk)

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

<nav class="dkan-c-main-nav">

Description

Landmarks should have a unique role or role/label/title (i.e. accessible name) c. Detected by axe-core rule landmark-unique on 5 of 2550 scanned pages (7 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/about/api.
  2. Locate the element: .dkan-c-main-nav
  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

Link to this finding Moderate axe landmark-no-duplicate-main Best Practice Document should not have more than one main landmark (WCAG criterion undetermined) 2/2550 pages · 2 instances Likely content
Bug ID
VS-d470c9b2
Pattern ID
VS-cd69be3a
Combined ID
VS-d470c9b2 (pattern VS-cd69be3a) — 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
#main-content
History
first seen 2026-W39, last seen 2026-W40 (2 wk)

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

<main id="main-content" class="ds-u-padding-top--4" tabindex="-1">

Description

Document should not have more than one main landmark. Detected by axe-core rule landmark-no-duplicate-main on 2 of 2550 scanned pages (2 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/about/api.
  2. Locate the element: #main-content
  3. Confirm the axe-core finding for rule landmark-no-duplicate-main.

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/landmark-no-duplicate-main?application=axeAPI

Link to this finding Moderate alfa sia-r61 Undetermined Form field label is visible (WCAG criterion undetermined) 2/2550 pages · 2 instances Likely content
Bug ID
VS-385c6a6c
Pattern ID
VS-7118fead
Combined ID
VS-385c6a6c (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-W40 (17 wk)

Description

Form field label is visible. Detected by Siteimprove Alfa rule sia-r61 on 2 of 2550 scanned pages (2 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/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

Link to this finding Moderate axe landmark-main-is-top-level Best Practice Main landmark should not be contained in another landmark (WCAG criterion undetermined) 2/2550 pages · 2 instances Likely content
Bug ID
VS-9d3c89d4
Pattern ID
VS-ff3ceb19
Combined ID
VS-9d3c89d4 (pattern VS-ff3ceb19) — 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
#operations
History
first seen 2026-W39, last seen 2026-W40 (2 wk)

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

<main id="operations" tabindex="-1" style="outline: none;">

Description

Main landmark should not be contained in another landmark. Detected by axe-core rule landmark-main-is-top-level on 2 of 2550 scanned pages (2 instances).

Steps to reproduce

  1. Open https://data.medicaid.gov/about/api.
  2. Locate the element: #operations
  3. Confirm the axe-core finding for rule landmark-main-is-top-level.

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/landmark-main-is-top-level?application=axeAPI

Deque axe-core findings

Rule-level axe-core summary (5 rule type(s))

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

axe-core rules failing in 2026-W40, by pages affected
RuleImpactPages affectedInstancesExample pagesAll affected
<ul> and <ol> must only directly contain <li>, <script> or <template> elements [list] serious 50 50 /datasets
/datasets
/datasets
all 50 pages (CSV)
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination [landmark-unique] moderate 5 7 /about/api
/about/program-overview
/api
all 5 pages (CSV)
Main landmark should not be contained in another landmark [landmark-main-is-top-level] moderate 2 2 /about/api
/api
all 2 pages (CSV)
Document should not have more than one main landmark [landmark-no-duplicate-main] moderate 2 2 /about/api
/api
all 2 pages (CSV)
<svg> elements with an img role must have alternative text [svg-img-alt] serious 1 10 /home all 1 pages (CSV)

Siteimprove Alfa findings

Rule-level Alfa summary (7 rule type(s))

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

Alfa rules failing in 2026-W40, by pages affected
RuleImpactPages affectedInstancesExample pagesAll affected
Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111] n/a 1029 30690 /dataset/e3af839d-8175-5be0-b94e-4a302ed7a035
/dataset/6165f45b-ca93-5bb5-9d06-db29c692a360
/dataset/d9fb4ebc-7ff5-5376-ae96-f7d08c294929
all 1029 pages (CSV)
Text has minimum contrast ratio of 4.5:1 [sia-r73] n/a 1029 8087 /dataset/e3af839d-8175-5be0-b94e-4a302ed7a035
/dataset/6165f45b-ca93-5bb5-9d06-db29c692a360
/dataset/d9fb4ebc-7ff5-5376-ae96-f7d08c294929
all 1029 pages (CSV)
aria-hidden element does not contain focusable elements [sia-r17] n/a 863 2094 /dataset/e3af839d-8175-5be0-b94e-4a302ed7a035
/dataset/6165f45b-ca93-5bb5-9d06-db29c692a360
/dataset/d9fb4ebc-7ff5-5376-ae96-f7d08c294929
all 863 pages (CSV)
Presentational children of an element are not focusable [sia-r68] n/a 34 34 /datasets
/datasets
/datasets
all 34 pages (CSV)
Table header has scope [sia-r78] n/a 23 23 /datasets
/datasets
/datasets
all 23 pages (CSV)
Accessible name of link or button matches visible label [sia-r14] n/a 11 11 /medicaid-chip-eligibility-enrollment-snapshot-data
/eligibility-enrollment-snapshot-data
/medicaid-chip-eligibility-enrollment-snapshot-data
all 11 pages (CSV)
Form field label is visible [sia-r61] n/a 2 2 /about/api
/about/faq
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.

Unique issues (rule × page)
3051
Caught by both engines
0 highest confidence
axe only
60
Alfa only
2991

No issues were flagged by both engines on the same pages this week.