Calibre for Product Teams
Ship fast experiences with confidence
Understand how real users experience your product, catch regressions before they ship, and align your team around performance goals that matter.
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Why Product Teams love Calibre
Track marketing & product pages in one place
Test logged in and private pages
Align the team on shared speed goals
Catch regressions in pull requests
Get monthly performance summaries automatically
Quantify third-party impact
“Thanks to detailed page breakdowns and filtering, I’ve found performance issues way deeper into customer journeys than I’ve seen before.”
Real User Data
Understand real-user experience
See how real users experience your product with Real User Monitoring.
See how real users experience your product
Calibre’s Real User Monitoring gives you real Core Web Vitals from actual visitor sessions.
Learn about Real User Monitoring →Know when every important page changes
Calibre automatically discovers your important pages and tracks real-user performance for each one as they launch.
Investigate
Understand the real cost of third-party scripts
Measure the transfer size and execution time of every external service on your pages. Make informed decisions about what stays.
Measure third-party cost
See the transfer size, execution time, and main-thread impact of every external script. Find what to keep, optimise, or remove.
Learn about Third-Party Report →Block and compare
Run tests with and without specific third parties (3P) using host blocking. Quantify the exact impact before making the case to remove them.
Learn about 3P & Host Blocking →
Need help to dial in your new speed system?
Our friendly, knowledgeable team will help you establish a system that works efficiently or answer any questions. We’re here to support you in your web performance journey. Contact support.
100%
Happy Customers
• 🤩 Amazing (75%)
• 😃 Great (25%)
Conversation ratings collected with Intercom over the past 3 months.
Explore more ways to use Calibre
Calibre for Agencies
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Calibre for Developers
One platform for all web performance needs
Check first results in just a couple minutes. Start improving performance the same day.
