See your site
exactly as users do
A real browser loads your page, captures every error, measures Core Web Vitals, and runs a mobile compatibility pass. Find what your users find - before they do.
Test your site freeWhat you get
A real browser session, not a static HTML parse.
Real browser rendering
We load your page in a real browser - not a parser, not a headless simulator. What we capture is exactly what your users see.
Console errors & JS exceptions
Every JavaScript error, unhandled promise rejection, and failed resource load is captured and shown with its full stack trace.
Core Web Vitals & performance
LCP, CLS, TBT, TTFB, and FCP - measured in a real browser session, not a lab estimate. Scored against Google's thresholds.
Mobile compatibility test
A second pass at 375px mobile viewport: viewport meta check, touch target sizes, horizontal overflow, font sizes, and a mobile screenshot.
How it works
Real browser. Real results. No setup.
Enter a URL
Paste any public URL. We launch a real browser session - desktop viewport, full JavaScript execution, no mocking.
Desktop + mobile pass
The browser loads your page at desktop size, waits for network to settle, then runs a second mobile pass at 375px.
Review the full report
Screenshots, Core Web Vitals, console errors, mobile compatibility, accessibility issues, tech stack - all in one report with AI analysis.
Full check list
24 signals captured across desktop and mobile in a single session.