Frontend Audit
Browser-based checks for performance, accessibility, broken links, console errors, UX friction, forms, assets, dependencies, and security headers.
Accepted inputs
https://example.com
owner/repo
Deterministic checks
Lighthouse/Core Web Vitals
Run PageSpeed/Lighthouse where available.
Requires: PAGESPEED_API_KEY
Security headers
Check CSP, HSTS, frame, content-type, and referrer headers.
Links and images
Crawl page links and images for broken or weak signals.
Accessibility heuristics
Check landmarks, labels, alt text, viewport, and heading structure.
Report sections
Related free tools
Live tools return real evidence. Registered tools stay disabled until the runner exists.
Frontend Speed Checker
Fetch a public page and report real HTML response time, document size, script count, stylesheet count, and image count.
Accessibility Checker
Parse a public page for accessibility basics: language, H1 structure, landmarks, image alt text, form labels, and button names.
Broken Link Checker
Sample public links from a page and fetch them to identify broken internal or external URLs.
Bundle Size Checker
Fetch same-origin scripts and stylesheets referenced by a page and estimate sampled transfer size.
Mobile UX Checker
Parse mobile UX signals from a public page: viewport tag, fixed-width CSS hints, interactive element count, and mobile input types.