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Website Optimization Wiki

Explore common website optimization, SEO, and accessibility issues — and learn how to resolve them.

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A11y Issues

Explore common website accessibility issues

A11y issue explanations — and suggested solutions (with HTML pass/fail examples)— for web accessibility best practices aligned to WCAG Levels A, AA, and AAA.

Website Accessibility Wiki

Web Accessibility Wiki Categories

Aria (A)

Aria (BP)

Color (A)

Color (AA)

Forms (A)

Forms (AA)

Forms (BP)

Keyboard (A)

Keyboard (BP)

Language (A)

Language (AA)

Name Role Value (A)

Name Role Value (BP)

Parsing (A)

Semantics (AAA)

Semantics (BP)

Sensory and Visual (AA)

Sensory and Visual (BP)

Structure (A)

Structure (AA)

Tables (A)

Tables (BP)

Text Alternatives (A)

Text Alternatives (BP)

Time and Media (A)

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