Performance
Real-user Web Vitals next to your traffic
Measure LCP, INP, CLS, FCP and TTFB from real visits, sampled to keep overhead low, and see which pages cost you the most.
p75 scorecards
Each metric shows its 75th percentile with the good, needs improvement and poor split, using Google's thresholds.
Worst pages first
Pages are ranked by how much poor performance they cause, weighted by traffic.
Free measurements
Web Vitals measurements never count toward your events.
Turn it on with one attribute
Add the vitals module to your snippet. The Free plan samples 10% of page loads. Paid plans choose the rate.
Learn the basics
New to Web Vitals? Read our plain-English explainer.
Start measuring without cookies
No cookies, no fingerprinting and no consent banner needed for measurement.
The free plan includes 10k events a month, 10 sites, 3 team members and 6 months of history. No card required.