Performance testing, with all the details

Test your sites against Google PageSpeed Insights. Track improvements over time. See more data than the official tool shows you.

Real PSI data

Same Lighthouse engine as pagespeed.web.dev. Mobile and desktop runs.

Deeper insights

Waterfall, filmstrip, third-party impact, main-thread breakdown — the data PSI hides.

Track over time

Persistent per-URL history with trend charts so you can see what your changes did.