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

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