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Calibre vs sitespeed.io

Calibre: Web performance monitoring with real user, CrUX and synthetic data sitespeed.io: Open source web performance testing with reports and metrics

Comparison of Calibre, sitespeed.io
Calibre
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sitespeed.io
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CategoryReal User MonitoringReal User Monitoring
PricingFree trialFree trial; free one-off reportOpen sourceFree, MIT licensed
Platforms
  • Web
–
Best for
  • Web developers
  • Front end teams
  • Site owners
  • Web developers
  • Performance engineers
  • Site owners
Highlights
  • Real user monitoring of Core Web Vitals
  • Chrome UX Report data for any site
  • Synthetic tests for steady performance baselines
  • HTML report with Core Web Vitals
  • Video of the page loading
  • HAR waterfall of network requests
GitHub stars–5k
Last update–3 days ago

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