Free Site Speed Test.

See exactly how real users experience your website. Test Core Web Vitals, explore years of historical data, and filter by country.

Instant report. No sign-up required.

Trusted by web performance experts

"Want to check your histograms from CrUX? Try Treo!"
Annie Sullivan
Chrome Web Platform Engineer (Core Web Vitals)

"We're thinking of changing CrUX to source from Treo"
Barry Pollard
Web Performance Developer Advocate, Google Chrome

"A periodic reminder that if you care about Core Web Vitals Treo is one of the most valuable tools you could add to your arsenal."
Harry Roberts
Web Performance Consultant

Zero Configuration

Get 80% of the value of an enterprise RUM solution in 3 seconds.

Skip the expensive RUM integrations and 30-day waiting periods. Get the absolute ground truth to build a better UX, increase conversion, and boost SEO—instantly and for free.

Instant Real-User Data

No tracking scripts or DNS verification required (unlike Search Console). Enter any domain to immediately access performance data collected from millions of real Chrome users.

The Ground Truth

Synthetic lab tests are simulations, not reality. Raw real-user data is a noisy mess of millions of visits. We process this chaos into clear, actionable dashboard that shows Core Web Vitals (LCP, INP, CLS) so you can make solid decisions.

Executive-Ready Reports

Bridge the gap between engineering and management. Share clean dashboards that are dense enough for developers to isolate root causes, yet simple enough for your CEO to understand the business impact.

Product

Free Tools

Company

Legal