Security update: API keys are now required in the X-WPT-API-KEY header. The query parameter k= will be ignored. Current API keys will continue to work.

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Webpage Performance Test Result

  • Settings: DesktopChromev113CableSydney, Australia
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    • First View only
    • Test runs: 1
    • Connectivity: 5000/1000 Kbps, 28ms Latency
    • Custom Metrics
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Main-thread Processing

Where the browser's main thread was busy, not including idle time waiting for resources (view timeline).

Processing Breakdown

Timing Breakdown

All of the main-thread activity including idle (waiting for resources usually) (view timeline).