Observed Web Vitals Metrics (Collected in this WPT test run)
Real-World Usage Metrics
Compare this WebPageTest run with browser-collected performance data for this site.
(Collected anonymously by Chrome browser from November 17, 2022 to December 14, 2022 | Full Report)
Largest Contentful Paint (LCP)
5.52S (poor)
At 75th percentile of visits.
6.30S better than this WPT test run's first view (11.81S). Why?
Cumulative Layout Shift (CLS)
0.58 (poor)
At 75th percentile of visits.
0.518 worse than this WPT test run's first view (0.062). Why?
First Input Delay (FID)
.05S (good)
At 75th percentile of visits.
Field metric only, no WPT test run data.
Note: Why can real browser usage metrics vary from test run metrics?
Variance between your test run and real world usage is expected because a WebPageTest run uses a specific connection speed, and real world data spans all connection speeds. To closely match the p75 user in WebPageTest, try rerunning your test using a different connection speed.