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Pa11y - Web Pagetest
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Pa11y

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description Pa11y Overview

Pa11y is an open-source command-line tool and browser extension that automatically audits websites for accessibility issues based on WCAG guidelines, reporting violations like missing alt text or improper heading structures.

help Pa11y FAQ

What is Pa11y?

Pa11y is an open-source command-line tool and browser extension that automatically audits websites for accessibility issues based on WCAG guidelines, reporting violations like missing alt text or improper heading structures.

How good is Pa11y?
Pa11y scores 7.79/10 (Good) on Lunoo, making it a well-rated option in the Web Pagetest category.
What are the best alternatives to Pa11y?
See our alternatives page for Pa11y for a ranked list with scores. Top alternatives include: Asqatasun, Lighthouse CI, Color Contrast Analyser (TPGi).
How does Pa11y compare to Asqatasun?
See our detailed comparison of Pa11y vs Asqatasun with scores, features, and an AI-powered verdict.
Is Pa11y worth it in 2026?
With a score of 7.79/10, Pa11y is a solid option in Web Pagetest. See all Web Pagetest ranked.

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