Everything your team needs to ship fast websites
One place to track Core Web Vitals with real user data and detailed insights for all your projects.

Calibre brings the best of both worlds: reliability of lab testing and user experience signals from real sessions.
“Now we can provide our clients with solutions, instead of setting up our own tooling.”
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Chris Free
Chief Executive Officer
Meet speed goals with Budgets
Budgets focus your team on reachable performance goals. And help maintain them.
“Thanks to Calibre’s reporting, we were able to detect a massive downgrade in performance.”
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Bernardo Baquero Stand
Senior Frontend Developer
Avoid regressions with Pull Request Reviews
Pull Request Reviews use your existing release process, catch issues during development, and prevent impacting your customers.
“Guaranteeing our clients good performance and delivering best practices has never been easier for us.”
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Carolina J Pernaut
QA Practice Manager at ITX Corp
Address speed issues with Snapshot Reports
Snapshots show performance issues with clear, visual reporting tailored for you. No more complex interfaces.
“Calibre delivers the substance behind the statistics. They know the actionability of performance measurement is paramount.”
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Paul Irish
Staff Software Engineer
Share performance data with everyone
Calibre is easy to incorporate into your existing tools and processes. Share Core Web Vitals with decision makers.
One platform for all web performance needs
Check first results in just a couple minutes. Start improving performance the same day.