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SpeedVitals vs sitespeed.io: catalog facts
SpeedVitals	sitespeed.io
Freemium Speed tests can be run for free; monitoring features are part of the wider service.	Free Free and open source with no sign-up.
Web	Command line
Tests from 30+ locations and several device types Global TTFB test with cache and CDN detection	Detailed reports with video, HAR waterfall and Core Web Vitals Scripting for multi-step user journeys
Online service only, no self-hosted option Pricing for monitoring is not detailed on the homepage	Command-line setup takes more effort than an online checker Long-term dashboards need your own Graphite or InfluxDB and Grafana
Web application	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is 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.