Compare software

Request Metrics vs sitespeed.io: catalog facts
Request Metrics	sitespeed.io
Freemium Sign-up is free to start; demos are offered for larger teams.	Free Free and open source with no sign-up.
Web	Command line
Real user monitoring and lab testing in one service Automatic weekly Lighthouse scans on desktop and mobile	Detailed reports with video, HAR waterfall and Core Web Vitals Scripting for multi-step user journeys
Hosted service only, with no self-hosted option Plan limits are not detailed in the research	Command-line setup takes more effort than an online checker Long-term dashboards need your own Graphite or InfluxDB and Grafana
Hosted service	Downloadable app
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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