Compare software

sitespeed.ioSpeedVitals
Free

Free and open source with no sign-up.

 Freemium

Speed tests can be run for free; monitoring features are part of the wider service.

Command line Web
  • Detailed reports with video, HAR waterfall and Core Web Vitals
  • Scripting for multi-step user journeys
  • Tests from 30+ locations and several device types
  • Global TTFB test with cache and CDN detection
  • Command-line setup takes more effort than an online checker
  • Long-term dashboards need your own Graphite or InfluxDB and Grafana
  • Online service only, no self-hosted option
  • Pricing for monitoring is not detailed on the homepage
Downloadable app Web application
Open source Closed source
License not stated License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Needs internet

Checked September 23, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.