On-demand performance testing

Get fast feedback

Create page tests against any public URL to get rapid feedback on performance, accessibility, SEO, progressive web apps and best practices.

Test from multiple locations

Ready where you are

Test from multiple locations

Calibre can test from all corners of the globe. Measure the user experience, no matter where your audience is.

Agent locations →
Real-world device and connection emulation

Real-world device and connectivity emulation

Understand how pages perform under a vast array of conditions, often different from your own.

Test in the open

Share results with your team

Share detailed reports with quality assurance, managers and fellow developers. No log-in required.

Ready to start with single page testing?

Single page tests are a part of Calibre’s command line interface.