mozilla.org
Last scanned Jun 22, 2026
mozilla.org achieved a strong 93 out of 100 in its WCAG 2.2 accessibility assessment conducted on June 22, 2026. The assessment identified 4 distinct accessibility violations totalling 24 instances, including 3 critical, 14 serious, 7 moderate issues. The most pressing issues include touch targets too small (WCAG 2.5.8), 8 instances; heading levels skipped (WCAG 1.3.1), 7 instances; and ensures <blink> elements are not used (WCAG 2.2.2), 6 instances. The assessment covered 10 pages across 22 unique page templates.
WCAG AAA
mozilla.org
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+ 21 more issues (on 10 pages)
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Score is based on 10 structurally unique pages representing 200 discovered URLs.
Key Accessibility Issues
24 violations found across 4 rules — 3 critical, 14 serious, 7 moderate, 0 minor
Ensure touch target have sufficient size and space (mobile 320px)
WCAG 2.5.8 · 8 instances found
Page has no <h1> heading — every page should have exactly one
WCAG 1.3.1 · 7 instances found · How to fix →
Ensures <blink> elements are not used
WCAG 2.2.2 · 6 instances found
Ensures an element's role supports its ARIA attributes
WCAG 4.1.2 · 3 instances found · How to fix →
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