{ "domain": "www.cdc.gov", "week": "2026-W40", "generatedAt": "2026-09-30T18:09:34.879Z", "reports": [ { "instance_id": "VS-92cb73c0", "pattern_id": "VS-179ad9b3", "a11y_pattern_fingerprint": "4c3459e5c6c9018e39828ce1b75adff71c17ca21d08cee4ee068599e7da0cd24", "a11y_pattern_display_id": "A11Y-PAT-4C3459E5C6C9", "a11y_occurrence_fingerprint": "042ee14ff75dbcef03bbcf26bb4ed5c7d42e631537d3e44d035dacaa55da6191", "a11y_occurrence_display_id": "A11Y-OCC-042EE14FF75D", "url": "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "xpath": "", "html_snippet": null, "wcag_sc": "2.5.8", "wcag_name": "Target Size (Minimum)", "wcag_level": "AA", "wcag_version": "2.2", "wcag_category": "WCAG 2.2 AA", "evidence_status": "automated-indicator", "rule_id": "sia-r113", "rule_label": "Target size is at least 24×24 CSS pixels or has spacing (Minimum)", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r113", "severity": "Moderate", "frequency": { "instances": 1476, "pages_affected": 155, "total_pages_scanned": 1948 }, "likely_source": "template", "summary": "Target size is at least 24×24 CSS pixels or has spacing (Minimum) (WCAG 2.5.8)", "description": "Target size is at least 24×24 CSS pixels or has spacing (Minimum). Detected by Siteimprove Alfa rule sia-r113 on 155 of 1948 scanned pages (1476 instances).", "examples": [ { "url": "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm" ], "affected_pages": [ "https://www.cdc.gov/pcd/issues/2013/12_0096.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6150a2.htm?s_cid=mm6150a2_w", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5943a4.htm?s_cid=mm5943a4_w", "http://www.cdc.gov/niosh/npg/npgd0407.html", "http://www.cdc.gov/niosh/npg/npgd0409.html", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5639md.htm", "http://www.cdc.gov/pcd/issues/2008/apr/07_0241.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5446md.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00017197.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5217a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6248a3.htm", "http://www.cdc.gov/PCD/issues/2009/jul/09_0017.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000804.htm", "http://www.cdc.gov/PCD/issues/2011/may/10_0045_es.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00015325.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4924a3.htm", "http://www.cdc.gov/pcd/issues/2006/jul/05_0138_es.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5014a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5614a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00014545.htm", "https://www.cdc.gov/niosh/npg/npgd0141.html", "https://www.cdc.gov/pcd/issues/2007/oct/07_0080_es.htm", "https://www.cdc.gov/niosh/docket/archive/docket298.html" ], "impact": { "groups": [ { "code": "LM", "group": "Limited manipulation/strength", "prevalence": 0.13, "percent": "13.0%", "estimatedExcluded": null }, { "code": "LR", "group": "Limited reach", "prevalence": 0.02, "percent": "2.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null } ], "summary": "Affects Limited manipulation/strength (13.0%), Limited reach (2.0%), Limited vision (2.4%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/pcd/issues/2013/12_0096.htm.", "Locate the element: ", "Confirm the Siteimprove Alfa finding for rule sia-r113 against WCAG 2.5.8 Target Size (Minimum)." ], "remediation_tip": null, "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r113", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W40", "weeks_seen": 17, "affected_pages_csv": "csv/alfa__sia-r113.csv" }, { "instance_id": "VS-940e6969", "pattern_id": "VS-f7dba940", "a11y_pattern_fingerprint": "384a922a3c558c88072ad37e1a9e7b3e528d7257ceff50f9b4089eeb335d3f4f", "a11y_pattern_display_id": "A11Y-PAT-384A922A3C55", "a11y_occurrence_fingerprint": "e02314270d259bcc12202c6d58788076978c2983a75af9571fb2a71534b6fb47", "a11y_occurrence_display_id": "A11Y-OCC-E02314270D25", "url": "https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html", "xpath": "", "html_snippet": null, "wcag_sc": "2.5.3", "wcag_name": "Label in Name", "wcag_level": "A", "wcag_version": "2.1", "wcag_category": "WCAG 2.1 A", "evidence_status": "automated-indicator", "rule_id": "sia-r14", "rule_label": "Accessible name of link or button matches visible label", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r14", "severity": "Moderate", "frequency": { "instances": 90, "pages_affected": 43, "total_pages_scanned": 1948 }, "likely_source": "template", "summary": "Accessible name of link or button matches visible label (WCAG 2.5.3)", "description": "Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 43 of 1948 scanned pages (90 instances).", "examples": [ { "url": "https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html", "xpath": "", "html_snippet": null }, { "url": "http://www.cdc.gov/nora/councils/construction.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/active-communities-tool/php/about", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/active-communities-tool/php/about", "xpath": "", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html", "http://www.cdc.gov/nora/councils/construction.html", "https://www.cdc.gov/active-communities-tool/php/about" ], "affected_pages": [ "https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html", "http://www.cdc.gov/nora/councils/construction.html", "https://www.cdc.gov/active-communities-tool/php/about", "http://www.cdc.gov/diabetes/es/diabetes-complications/la-diabetes-y-la-salud-oral.html", "https://www.cdc.gov/salmonella/outbreaks/bearded-dragon-10-22/index.html", "http://www.cdc.gov/cancer/es/prevention/index.html", "http://www.cdc.gov/healthy-swimming/es/prevention/preventing-eye-irritation-from-pool-chemicals.html", "https://www.cdc.gov/hepatitis/statistics/2021surveillance/hepatitis-a/figure-1.6.htm", "http://www.cdc.gov/diabetes-prevention/es/about-prediabetes-type-2/prediabetes-y-diabetes-tipo-2.html", "http://www.cdc.gov/acanthamoeba/about/index.html", "https://www.cdc.gov/act-early/resources/milestone-tracker-app-posters.html", "https://www.cdc.gov/tobacco/campaign/tips/spanish/poblaciones/indoamericanos-o-nativos-de-alaska.html", "https://www.cdc.gov/healthy-swimming/es/about/consejos-para-el-uso-de-panales-para-nadar.html", "http://www.cdc.gov/shingles/es/about/acerca-de-la-culebrilla-herpes-zoster.html", "http://www.cdc.gov/acip-recs/hcp/vaccine-specific/dtap-tdap-td.html", "https://www.cdc.gov/acip-recs/hcp/vaccine-specific/anthrax.html", "http://www.cdc.gov/media/es/releases/2026/el-brote-de-cyclospora-vinculado-a-la-lechuga-iceberg-se-extendio-a-cuatro-nuevos-estados.html", "http://www.cdc.gov/tobacco/campaign/tips/spanish/historias/kristy.html", "https://www.cdc.gov/ncbddd/birthdefects/data.html", "http://www.cdc.gov/healthy-swimming/es/prevention/como-prevenir-el-oido-de-nadador.html", "https://www.cdc.gov/niosh/publications/numbered/2004-110.html", "http://www.cdc.gov/media/es/releases/2025/comunicado-de-los-cdc-sobre-el-brote-de-sarampion-04072025.html", "https://www.cdc.gov/niosh/publications/es/numbered/2002-107sp.html", "http://www.cdc.gov/nchs/healthy_people/hp2020/progress-tables.htm", "https://www.cdc.gov/stop-overdose/es/caring/como-ayudar-a-detener-una-sobredosis.html" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "WS", "group": "Without speech", "prevalence": 0.005, "percent": "0.5%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Without speech (0.5%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/niosh/publications/es/numbered/2006-110sp.html.", "Locate the element: ", "Confirm the Siteimprove Alfa finding for rule sia-r14 against WCAG 2.5.3 Label in Name." ], "remediation_tip": null, "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r14", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W40", "weeks_seen": 17, "affected_pages_csv": "csv/alfa__sia-r14.csv" }, { "instance_id": "VS-058fa054", "pattern_id": "VS-9074b4dd", "a11y_pattern_fingerprint": "a63aeb2e943401209ab1a27548f4db2826919c02cf8213d2900e7cb35f61d431", "a11y_pattern_display_id": "A11Y-PAT-A63AEB2E9434", "a11y_occurrence_fingerprint": "f07f794a29da92e30b8171e89154b60ba8dff6639b51a95746ee41d9e9f81b75", "a11y_occurrence_display_id": "A11Y-OCC-F07F794A29DA", "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"", "wcag_sc": "1.1.1", "wcag_name": "Non-text Content", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "image-alt", "rule_label": "Images must have alternative text", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI", "severity": "Critical", "frequency": { "instances": 3979, "pages_affected": 339, "total_pages_scanned": 1948 }, "likely_source": "template", "summary": "Images must have alternative text (WCAG 1.1.1)", "description": "Images must have alternative text. Detected by axe-core rule image-alt on 339 of 1948 scanned pages (3979 instances).", "examples": [ { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "xpath": "img[height=\"10\"][alt=\" \"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(3) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00056637.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00056637.htm", "xpath": "img[height=\"10\"][alt=\" \"][src$=\"spacer.gif\"]", "html_snippet": "\"" } ], "example_pages": [ "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00056637.htm", "http://www.cdc.gov/pcd/issues/2007/apr/06_0073a.htm" ], "affected_pages": [ "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00056637.htm", "http://www.cdc.gov/pcd/issues/2007/apr/06_0073a.htm", "http://www.cdc.gov/pcd/issues/2006/oct/05_0243_zhs.htm", "http://www.cdc.gov/pcd/issues/2011/nov/10_0197_es.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00000283.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00053877.htm", "http://www.cdc.gov/pcd/issues/2009/jan/07_0242_zhs.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5022a3.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00038946.htm", "http://www.cdc.gov/pcd/issues/2010/mar/09_0095_es.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "http://www.cdc.gov/pcd/issues/2009/jan/08_0020_fr.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/ss5709a3.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00051486.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000230.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5319a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5613a5.htm", "http://www.cdc.gov/pcd/issues/2006/jul/05_0173_fr.htm", "http://www.cdc.gov/pcd/issues/2006/jan/05_0077_fr.htm", "http://www.cdc.gov/PCD/issues/2010/may/09_0164.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5407a5.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5433a2.htm", "http://www.cdc.gov/pcd/issues/2005/apr/04_0139_zhs.htm" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/mmwr/preview/mmwrhtml/00000450.htm.", "Locate the element: td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "Confirm the axe-core finding for rule image-alt against WCAG 1.1.1 Non-text Content." ], "remediation_tip": "Give every a meaningful alt attribute. Use alt=\"\" only for decorative images so screen readers skip them.", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W40", "weeks_seen": 17, "affected_pages_csv": "csv/axe-core__image-alt.csv" }, { "instance_id": "VS-fdd075cd", "pattern_id": "VS-a24eaa8c", "a11y_pattern_fingerprint": "08fcf4104776325c4249523ea3a19eb9da7511b09ae3fe405e100fb8fe2dfcd4", "a11y_pattern_display_id": "A11Y-PAT-08FCF4104776", "a11y_occurrence_fingerprint": "bfa05ac327b217d3215dcc1c56f78be56150e4d3e759e1961c4ba18b75980006", "a11y_occurrence_display_id": "A11Y-OCC-BFA05AC327B2", "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "\"", "html_snippet": null, "wcag_sc": "1.1.1", "wcag_name": "Non-text Content", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "sia-r2", "rule_label": "Image has accessible name", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r2", "severity": "Moderate", "frequency": { "instances": 891, "pages_affected": 84, "total_pages_scanned": 1948 }, "likely_source": "template", "summary": "Image has accessible name (WCAG 1.1.1)", "description": "Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 84 of 1948 scanned pages (891 instances).", "examples": [ { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "xpath": "\"", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5639md.htm" ], "affected_pages": [ "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm", "https://www.cdc.gov/pcd/issues/2004/jan/03_0012.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5639md.htm", "http://www.cdc.gov/pcd/issues/2008/apr/07_0241.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5446md.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00017197.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5217a1.htm", "http://www.cdc.gov/PCD/issues/2009/jul/09_0017.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000804.htm", "http://www.cdc.gov/PCD/issues/2011/may/10_0045_es.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00015325.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4924a3.htm", "http://www.cdc.gov/pcd/issues/2006/jul/05_0138_es.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5014a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5614a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00014545.htm", "https://www.cdc.gov/pcd/issues/2007/oct/07_0080_es.htm", "https://www.cdc.gov/pcd/issues/2005/apr/04_0142o_zht.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5440a4.htm", "https://www.cdc.gov/mmwr/volumes/66/wr/mm6619md.htm?s_cid=mm6619md_w", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5006a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000714.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00022062.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5402a8.htm", "http://www.cdc.gov/pcd/issues/2005/apr/04_0063_zht.htm" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5050a3.htm.", "Locate the element: \"", "Confirm the Siteimprove Alfa finding for rule sia-r2 against WCAG 1.1.1 Non-text Content." ], "remediation_tip": "Give every an accessible name (alt text), or alt=\"\" if purely decorative.", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r2", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W40", "weeks_seen": 17, "affected_pages_csv": "csv/alfa__sia-r2.csv" }, { "instance_id": "VS-c2f630a4", "pattern_id": "VS-9429bb8d", "a11y_pattern_fingerprint": "204135199b1ceb5bebfbbcc4785bbd40f91b543a672fddc1672b44c35aa77fe2", "a11y_pattern_display_id": "A11Y-PAT-204135199B1C", "a11y_occurrence_fingerprint": "ac030ef31526e42a9fffce59475126d626cc76849391c348833c88ba73caf8ad", "a11y_occurrence_display_id": "A11Y-OCC-AC030EF31526", "url": "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294", "xpath": "#accordion-7", "html_snippet": "
", "wcag_sc": "1.3.1", "wcag_name": "Info and Relationships", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "aria-required-children", "rule_label": "Certain ARIA roles must contain particular children", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/aria-required-children?application=axeAPI", "severity": "Critical", "frequency": { "instances": 2, "pages_affected": 1, "total_pages_scanned": 1948 }, "likely_source": "content", "summary": "Certain ARIA roles must contain particular children (WCAG 1.3.1)", "description": "Certain ARIA roles must contain particular children. Detected by axe-core rule aria-required-children on 1 of 1948 scanned pages (2 instances).", "examples": [ { "url": "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294", "xpath": "#accordion-7", "html_snippet": "
" }, { "url": "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294", "xpath": "#acc-panel-7", "html_snippet": "
" } ], "example_pages": [ "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294" ], "affected_pages": [ "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.html?s_cid=so_togetherconsumertk0294.", "Locate the element: #accordion-7", "Confirm the axe-core finding for rule aria-required-children against WCAG 1.3.1 Info and Relationships." ], "remediation_tip": "Add the child roles this container role requires (e.g. a list needs listitem children).", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-required-children?application=axeAPI", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W25", "last_seen": "2026-W40", "weeks_seen": 14, "affected_pages_csv": "csv/axe-core__aria-required-children.csv" }, { "instance_id": "VS-78e39994", "pattern_id": "VS-07ba3b17", "a11y_pattern_fingerprint": "35bf82840dbbddb24e235c2ddbd5cf8fa96c507a6fd65a6ec38e1abea6cb1af1", "a11y_pattern_display_id": "A11Y-PAT-35BF82840DBB", "a11y_occurrence_fingerprint": "3286953b5fa9856f5275eb9f932a69f2edcb67e0f4489034c2b215b6f00c7b88", "a11y_occurrence_display_id": "A11Y-OCC-3286953B5FA9", "url": "https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html", "xpath": "table", "html_snippet": "", "wcag_sc": "1.3.1", "wcag_name": "Info and Relationships", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "td-headers-attr", "rule_label": "Table cell headers attributes must refer to other
elements in the same tabl", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/td-headers-attr?application=axeAPI", "severity": "Serious", "frequency": { "instances": 13, "pages_affected": 11, "total_pages_scanned": 1948 }, "likely_source": "template", "summary": "Table cell headers attributes must refer to other elements in the same tabl (WCAG 1.3.1)", "description": "Table cell headers attributes must refer to other elements in the same tabl. Detected by axe-core rule td-headers-attr on 11 of 1948 scanned pages (13 instances).", "examples": [ { "url": "https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html", "xpath": "table", "html_snippet": "" }, { "url": "https://www.cdc.gov/brfss/acbs/2012/prevalence_tables/table6.html", "xpath": "table", "html_snippet": "
" }, { "url": "https://www.cdc.gov/asthma/healthcare-use/2013/table_b.html", "xpath": "table", "html_snippet": "
" }, { "url": "https://www.cdc.gov/brfss/acbs/2018/prevalence_tables/table8_LLCP.html", "xpath": "table", "html_snippet": "
" }, { "url": "https://www.cdc.gov/asthma/nhis/2021/table1-2.htm", "xpath": "table", "html_snippet": "
" } ], "example_pages": [ "https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html", "https://www.cdc.gov/brfss/acbs/2012/prevalence_tables/table6.html", "https://www.cdc.gov/asthma/healthcare-use/2013/table_b.html" ], "affected_pages": [ "https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html", "https://www.cdc.gov/brfss/acbs/2012/prevalence_tables/table6.html", "https://www.cdc.gov/asthma/healthcare-use/2013/table_b.html", "https://www.cdc.gov/brfss/acbs/2018/prevalence_tables/table8_LLCP.html", "https://www.cdc.gov/asthma/nhis/2021/table1-2.htm", "http://www.cdc.gov/acip/grade/cholera-cvd-103-hgr-child-2-17-years.html", "https://www.cdc.gov/legionella/php/surveillance/surveillance-report-2018-2019.html", "http://www.cdc.gov/asthma/healthcare-use/2017/table_a.html", "https://www.cdc.gov/asthma/healthcare-use/2017/table_a.html", "https://www.cdc.gov/asthma/nhis/2019/table6-1.htm", "https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table12.html" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/brfss/acbs/2017/multiple_year/acbs_prevalence_15-17_table2a.html.", "Locate the element: table", "Confirm the axe-core finding for rule td-headers-attr against WCAG 1.3.1 Info and Relationships." ], "remediation_tip": "Associate data cells with their headers correctly using headers/id or scope.", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/td-headers-attr?application=axeAPI", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W25", "last_seen": "2026-W40", "weeks_seen": 16, "affected_pages_csv": "csv/axe-core__td-headers-attr.csv" }, { "instance_id": "VS-03304dc6", "pattern_id": "VS-a0bdbdf6", "a11y_pattern_fingerprint": "fb2e44a0b3ea53a65d21ae86f76bad4a99f4bc3f517bfa767805020831d7bc02", "a11y_pattern_display_id": "A11Y-PAT-FB2E44A0B3EA", "a11y_occurrence_fingerprint": "5803cc5d1f63ca4e066a144feee981f2f32f087a77168e639a10e626d0edbcec", "a11y_occurrence_display_id": "A11Y-OCC-5803CC5D1F63", "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/00038946.htm", "xpath": "ol[type=\"1\"]", "html_snippet": "
    ", "wcag_sc": "1.3.1", "wcag_name": "Info and Relationships", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "list", "rule_label": "
      and
        must only directly contain
      1. ,