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How teams use real user page speed data

Guides and articles on measuring website performance from real visits.

Articles

  • Why “Real World” Speed Test?

    Why “Real World” Speed Test?

    Synthetic vs real speed tests

    What lab tests miss, and why measuring every real visit gives the accurate picture.

    Read more
  • Fast For You, Slow For Your Users

    Fast For You, Slow For Your Users

    Region, device and browser splits

    Why your own browser is the worst place to measure, and a four-step way to find who is actually waiting.

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  • The nanoseconds.io dashboard

    The nanoseconds.io dashboard

    Web Vitals per page

    FCP, LCP, CLS and TTFB for every page, device, browser and region.

    Open dashboard