Web Development Beginner

What is Web Accessibility (a11y)?

The practice of designing websites that can be used by people with disabilities, following WCAG guidelines.

Web accessibility ensures websites are usable by everyone, including people with visual, auditory, motor, and cognitive disabilities. WCAG (Web Content Accessibility Guidelines) defines standards at levels A, AA (common target), and AAA.

Key practices include semantic HTML, alt text for images, keyboard navigation, sufficient color contrast, ARIA attributes, screen reader compatibility, and captions for media. Accessibility also benefits SEO and general usability.

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Google's metrics for measuring user experience quality, including loading speed, interactivity, and visual stability of web pages.

Web Performance Optimization

Techniques to make websites load faster and respond more quickly, improving user experience and search engine rankings.

Static Site Generator (SSG)

A tool that generates a complete static HTML website from templates and content at build time, requiring no server-side processing.

A mechanism where a server sends real-time HTTP POST notifications to a specified URL when specific events occur.

Brotli Compression

A modern compression algorithm developed by Google that achieves better compression ratios than Gzip for web content delivery.

API (Application Programming Interface)

A set of rules and protocols that allows different software applications to communicate and exchange data.

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