~/talk

Web Vitals

on YouTube 30m
Talkat Google I/O 2021 · 2021-05-18..05-20· [web-performance]

speakers

name:Philip Walton
website:https://philipwalton.com
name:John Mueller
website:https://johnmu.com/
name:Annie Sullivan
website:https://anniesullie.com
name:Elizabeth Sweeny
github:egsweeny

resources

video:https://youtu.be/HWm6WNkHs90
slides:none on file

summary

AMA format that answers how Core Web Vitals are measured and applied: real user field vs lab data details, the use of 75th percentile Chromium RUM, differences between Lighthouse/PSI and CrUX, rollout timing for CLS and desktop, and how page-level scores affect Search ranking (not strictly binary). Practical tooling and numbers include web-vitals.js, CRuX thresholds, 28-day aggregation caveats, and advice to collect your own RUM and prioritize LCP (images). Technical, actionable, and specific.

AI-written summary · about

chapters (6)

  1. 0:00Intro
  2. 8:45Real User Data
  3. 18:40Chrome Data
  4. 20:40Availability of Data
  5. 23:09Core Vitals
  6. 28:20Conclusion

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