Site Audit Lab: Website Accessibility Checker & SEO Audit (WCAG 2.2)

WCAG accessibility checker and on-page SEO audit. See failing elements on the page. Scan up to 5 pages of a site free, no account.

Site Audit Lab checks a web page for accessibility and on-page SEO issues, shows you where they are, then scans several pages of the same website and groups the results. It is made for web developers, designers, testers, SEO specialists and agencies reviewing a site before launch or for a client. CHECK THE PAGE YOU ARE ON (FREE) - Accessibility checker: runs axe-core 4.14, the open-source engine by Deque, on WCAG 2.0 and 2.1 level A/AA rules and WCAG 2.2 level AA rules. - For each failed rule: impact (critical, serious, moderate, minor), number of elements, WCAG criterion and a link explaining how to fix it. - Highlight on page: outlines up to 20 failing elements per rule directly in the page. Hover one to read the issue. - SEO checker: 10 on-page checks covering title and meta description length, H1, page language, canonical URL, mobile viewport, noindex, images without alt attribute, Open Graph title and HTTPS. - Two indicative scores out of 100, a copyable text report and a JSON download. - Works on the page open in your tab, including staging and logged-in pages. SCAN A WEBSITE - Enter a start URL: the scan follows links within the same site and can also read its sitemap.xml. - Each page is loaded in a background tab and audited, and the tab closes when the scan ends. - Pages that return an HTTP error, such as 404, are listed. - The report ranks accessibility issues by impact, then by number of pages affected, and gives scores and main SEO issues page by page. - Download the JSON, or print the report or save it as a PDF. FREE AND PRO Free: page audit, highlighting and site scan up to 5 pages, with no account. Pro (€4.99/month or €39.99/year): site scan up to 500 pages, CSV export with one row per issue and page, and a printed report under your agency or client name. YOUR DATA Audits run in your browser. Page content and audit results are not sent to our servers. The page audit reads a page only after you click "Audit this page". The site scan asks for permission on the site you choose, and you can revoke it at any time. Pro payments and plan status go through ExtensionPay and Stripe: the extension contacts ExtensionPay to check your plan, and your email address is collected if you pay. LIMITS Automated tools find only part of accessibility barriers. Keyboard use, screen reader behaviour and content clarity still need a manual review. A scan does not prove compliance with WCAG, the European Accessibility Act (EAA), the ADA or any other law. The interface and reports are in English. More: siteauditlab.dev/extension