Free Website Audit Tools: Build a Task-Based Toolkit

No free tool covers a complete website audit. Build a small toolkit: Search Console for Google's observed search data, a crawler for site-wide URL evidence, page tools for performance and accessibility, and focused security checks. Keep each result attached to the URL, date and test conditions.

Google Search Console

Google Search Console reports Google Search performance, indexing, crawling and enhancement data for verified properties. Use it to inspect Google's observed state and submitted sitemaps. It does not replace a full site crawl, and its reports can aggregate, filter or delay data.

Google Lighthouse

Lighthouse audits one page in a lab environment for performance, accessibility, SEO and other quality checks. Run repeat tests under comparable conditions and open the evidence behind each failed audit. See our Lighthouse interpretation guide.

Google PageSpeed Insights

PageSpeed Insights combines a Lighthouse lab run with Chrome User Experience Report field data when eligible data exists. Use field LCP, INP and CLS to understand real-user experience, and lab diagnostics to investigate. A URL may have no field data when the CrUX dataset lacks sufficient coverage.

Screaming Frog Free Version

Screaming Frog SEO Spider is a desktop crawler. Its free version crawls up to 500 URLs in one crawl and exports common link, response, directive and on-page fields. Saving crawls, JavaScript rendering, custom extraction, API integrations and scheduling require the paid version.

Ahrefs Free

Ahrefs Webmaster Tools is now Ahrefs Free. It provides Site Audit and selected Site Explorer access for verified sites. Ahrefs listed 5,000 Site Audit crawl credits per verified project per month on 11 September 2026; check the current allowance before planning recurring crawls.

WAVE Accessibility Checker

WAVE by WebAIM adds visual feedback about accessibility conditions to a page. Use it to locate automatable issues, then test keyboard access, focus, zoom, content meaning and assistive-technology output manually. Automated results do not establish WCAG conformance.

Qualys SSL Labs

SSL Labs Server Test examines the public TLS endpoint and certificate configuration. It does not inspect application code, authentication or every page-level security condition. Obtain permission before testing infrastructure you do not own.

Security Headers

Security Headers reports selected HTTP response headers for a requested URL. Review the actual response across representative page types; one high-level grade is not a security audit, and a strict policy must be tested against required site behaviour.

GTmetrix

GTmetrix provides page performance tests with report and waterfall views. Record location, device, connection and test time when comparing runs. Free-account limits and test locations can change, so use the current product page rather than a stored allowance.

WebPageTest

WebPageTest provides configurable browser tests, waterfalls and visual loading evidence. Its official documentation explains browser, location and test-run options. Use it to diagnose request and rendering sequences. Choose a repeatable location, device and connection profile, and keep synthetic results separate from real-user field data.

For the next step, map each confirmed finding into the website audit checklist and retain the source report. Access and product facts checked against official tool pages on 11 September 2026.