Page Autopsy - Analyze page performance

Page Autopsy runs a full performance, SEO, and accessibility audit on any page - right from Chrome's side panel, with zero setup. FREE FOREVER ! One click gives you a 0-100 health score built from real browser data: Core Web Vitals (LCP, CLS, INP, FCP, TTFB), total page weight, request count, and DOM size - the same signals Google uses to judge your page. WHAT IT CHECKS - Core Web Vitals with CLS culprits and long-task attribution, not just the numbers (full culprits and attribution with PRO) - Every resource on the page - images, scripts, CSS, fonts - broken down by size, domain, and load time (Scripts tab with PRO) - Third-party weight tracked separately from your own code (PRO) - Render-blocking scripts and stylesheets found in <head> - Cache & compression audit - flags resources served without gzip/brotli and estimates the savings - Duplicate request detection - Image audit - missing width/height (a top CLS cause), oversized images, missing lazy-load, outdated formats (JPEG/PNG that should be WebP/AVIF) - SEO scan - title, meta description, canonical tag, JSON-LD, preconnect hints (PRO) - Accessibility scan - missing lang attribute, images without alt text, heading hierarchy gaps - Privacy scan - flags known analytics/ad trackers loaded on the page - Compare Before/After - save a baseline and see if your fixes actually moved the needle - One-click PDF export of the full report PRIVACY BY DESIGN Everything runs locally in your browser using the Performance and DOM APIs - no page content, URLs, or metrics are ever sent to a server. The only network call is to ExtensionPay to verify a PRO license, and only if you've purchased one. WHO IT'S FOR Developers debugging real-world performance regressions, freelancers auditing client sites before a handoff, and SEO/marketing folks who want a plain-language list of what to fix