debugutils.dev/test/website-speed/.../overview
Get a full performance report with scores, waterfall, filmstrip, and specific fixes — in under 2 minutes.
What you get
Other tools give you a number. We show you exactly what to fix, which resources are the problem, and how much faster your site could be.
Full Lighthouse audit with performance, accessibility, best practices, and SEO scores. See exactly where you stand.
Every metric Google uses to rank your site — TTFB, FCP, LCP, TBT, CLS — with lab and real-user field data side by side.
See every network request in order, with full timing breakdown. Find the slow third-party script or oversized image instantly.
Frame-by-frame filmstrip showing exactly how your page loads with TTFB, FCP, and LCP markers on the timeline.
Screenshot and details of your Largest Contentful Paint element so you know exactly what to optimize.
A prioritized fix list with estimated savings per item. Not "optimize images" — the exact files, sizes, and expected improvement.
How it works
Paste any URL. We handle normalization, redirects, and protocol detection.
Real Chrome browser runs Lighthouse and captures network data, screenshots, and video.
Scores, metrics, waterfall, filmstrip, video, and recommendations — ready in under 2 minutes.
Go beyond one-off tests. Continuous monitoring, CI/CD integration, and real user data to keep your site fast.
Automated daily, weekly, or custom-interval tests. Track performance trends over time and get alerted to regressions.
Run performance tests in your deployment pipeline. Set budgets and fail builds when performance degrades.
Lightweight snippet to collect real Core Web Vitals from your actual users, segmented by device, connection, and geography.
Multi-region uptime checks with instant alerting via email, Slack, and webhooks when your site goes down.
Free speed tests always stay free.
Paste your URL, get a full report in under 2 minutes. No account needed.
Results are shareable via URL and stored for 90 days.