Blocklist

• Lab simulation

  can't see reality at all

  Lighthouse

  A bot that never clicks, never scrolls, never checks out. Easy to impress - impossible to trust.

• Core Web Vitals

  sees some reality, too late

  

  Chrome on P75

  Chrome only. 28 days old. No way to dig deeper. Better than nothing - but not by much.

• Your own users

  sees everything, right now

  RUM

  This is what's actually happening. Not a simulation, not a sample, not last month. Reality.