Each page below contains intentional, isolated accessibility errors for testing and illustration. Every error is labeled with its WCAG criterion and tagged with a data-error-id attribute.
Missing alt text, filename as alt, decorative image issues
6 errorsMissing labels, broken associations, placeholder-only labels
7 errorsInvalid roles, missing properties, conflicting semantics
7 errorsText, large text, and UI component contrast failures
4 errorsSkipped levels, missing h1, faux headings
4 errorsMissing headers, scope, captions, and associations
5 errorsTraps, missing handlers, removed focus indicators
4 errorsMissing lang, wrong lang, unmarked foreign text
3 errorsEmpty links, vague text, missing new-window warnings
5 errorsMissing landmarks, skip nav, page title issues
4 errorsMissing captions, autoplay, no transcripts
3 errorsMissing live regions, status messages, assertive misuse
3 errorsContainer overflow, viewport overruns, and px vs rem sizing at up to 250% text scale
7 errorsProgrammatic detection of container collisions and viewport overruns at any text scale
0 errors