What is WCAG Compliance?
WCAG Compliance is defined as a set of guidelines developed by the W3C to make web content more accessible to people with physical, sensory, and cognitive disabilities.
Detailed Architectural Context
The Web Content Accessibility Guidelines (WCAG) define three compliance levels (A, AA, AAA). For UK commercial and public sector websites, Level AA is the standard legal and design benchmark. WCAG compliance requires implementing semantic HTML, complete keyboard navigability (ensuring users can tab through the site), clear focus indicators, color contrast ratios of at least 4.5:1, and descriptive ARIA labels for screen readers. Beyond accessibility, WCAG-compliant HTML is highly structured, which helps search engine bots crawl and index content more effectively.
Related Technical Terms
Responsive Web Design
A design approach where layouts automatically adjust their grid systems, fonts, and images to look polished on any screen size or device.
Technical SEO
The process of optimizing a website's server and technical structures to help search engine crawlers find, parse, index, and rank pages.
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