Web Design & UX

Web Accessibility (a11y)

Quick Definition

Accessibility is designing and building websites that work for all users, including those with visual, auditory, motor, or cognitive impairments.

In context

Standards: WCAG 2.1 (and 2.2) at AA level is the typical legal and best-practice baseline. Accessible sites also tend to perform better in SEO due to clean semantic HTML and stronger structure.

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Related terms

Above the Fold

Above the fold is the content visible without scrolling when a page loads, named after the front page of a folded newspaper.

WCAG (Web Content Accessibility Guidelines)

WCAG is the W3C accessibility standard with three conformance levels: A (basic), AA (typical legal/best-practice), AAA (highest).

Dynamic Site

A dynamic site generates pages on demand, typically by querying a database and rendering through a server-side framework.

Scroll Depth

Scroll depth measures how far down a page users scroll, often expressed as percentage milestones (25%, 50%, 75%, 100%).

Session Recording

Session recording captures and plays back individual user sessions, showing exactly how a person navigated, scrolled, and interacted with the site.

Mobile-First Design

Mobile-first design starts with the mobile layout and progressively enhances for larger screens, rather than designing desktop and shrinking down.

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