// Accessibility
A set of HTML attributes that improve accessibility for dynamic, interactive web content. Common ARIA attributes: aria-label (names elements), aria-required (marks required fields), role (defines element purpose). Incorrect ARIA usage can make pages less accessible than no ARIA at all.
Why it matters: ARIA (Accessible Rich Internet Applications) is one of the accessibility signals that shapes how search engines, AI tools, and real visitors experience your website. Getting it right removes friction, protects your rankings, and makes every other optimization work harder. Auditing it regularly is the fastest way to catch regressions before they cost you traffic or conversions.
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