Calibre automates testing, reporting and alerting, so you don’t have to. It’s built for teams who want to be fast.Start my free trial
No card required ∙ Nothing to install
Most speed tools require elaborate setup and maintenance.
Calibre brings you reports just in a few clicks.
No coding skills or tracking scripts required.
Test public and password-protected sites, no matter the stack.
Choose from over 40 user experience metrics, including Core Web Vitals.
Run Lighthouse tests when you need them. No long waits for results.
Track speed from 17 locations.
It’s that easy.
Our verification engine checks every test for anomalies. Never doubt what you see.
You shouldn’t need to become a performance expert. Calibre gives you transparent and actionable reports.
Set performance budgets based on recommended ranges. Calibre notifies you when there are changes that need your attention.
Get an email summary of site speed changes. We churn the data, so you can ditch the spreadsheets (unless you love them!).
Know which external scripts and tools are letting you down. Find faster alternatives.
Assign people to relevant projects and invite clients. No more information overload or access issues.
“Now we can provide our clients with solutions, instead of setting up our own tooling.”
Chris Free, Chief Executive Officer
“Guaranteeing our clients good performance and best practices has never been easier for us.”
Carolina J Pernaut, QA Practice Manager
“Calibre delivers the substance behind the statistics. They know the actionability of performance measurement is paramount.”
Paul Irish, Staff Software Engineer
“What sets Calibre apart is how easily it supports more than basic authentication.”
Angel Velasco, Full Stack Engineer
“Thanks to Insights weekly, we were able to detect a massive downgrade in performance.”
Bernardo Baquero Stand, Senior Frontend Developer
“We can now really quickly and easily see the impact of each individual third-party source.”
Daniel Moll, Senior Consultant Technology & Integration
When 83% of people admit that speed is critical, and 1 second delay causes a 20% drop in conversions, lack of investment in speed becomes a liability.
Most existing tools out there require elaborate setup, a lot of time and performance expertise to make an impact. The pressure is high, and so is the barrier to entry. We’ve seen teams of all shapes and sizes struggle to get started and continue working on speed.
That’s why we built Calibre—to remove complexity from site speed tracking, so you can focus on what’s most important to your business. We give you an all-in-one monitoring platform with actionable advice that anyone can use.
Over the years, we’ve helped tens of thousands of people understand and improve the speed of their sites and applications. I’d love for you to give Calibre a try, too!
Ben Schwarz, Founder & CEO
Get your first results
in just a few minutes
Calibre keeps your entire team focused on speed without needless complexity. Start your free, 15-day trial today.Sign up free