Understand and improve your site speed
An all-in-one speed monitoring platform with transparent reports and actionable advice to make your sites fast.
Start my free trialor Book a demoThe world’s best brands chose Calibre to be their speed companion
Simulate real-world conditions
Understand what your audience is experiencing. Choose from global test locations, turn off ads or mimic mobile devices effortlessly.
Stay on track with budgets
Know about speed regressions before they affect your sales. Always meet your goals.
Understand the impact of third party code
See the impact of external scripts quickly. Make informed decisions on which tools to use without losing speed.
“Calibre delivers the substance behind the statistics. They know the actionability of performance measurement is paramount.”
Paul Irish, Staff Software Engineer
Review changes in Pull Requests
Spot speed changes before releasing to production. Bring accountability to the entire development team.
Automate your speed monitoring system
Create tests and access metrics in a breeze. Export data and integrate with your favourite tools.
Receive regular speed reports
Save hours on distilling speed data. Receive beautiful reports on crucial metrics, weekly or monthly.
Be confident of results
Never question your speed data. Calibre runs an AI-powered validation engine to ensure the most reliable performance results on the market.
Start your free 15-day trial
Set up in minutes. Nothing to install.