Speed & Core Web Vitals: a timeline
Page speed and Core Web Vitals — LCP, INP and CLS — with the browser and tooling changes that affect how they are measured. The thresholds and the metrics themselves have changed more than once, so older advice in this area goes out of date quickly.
Latest speed & core web vitals news · This month's speed & core web vitals recap · RSS for this topic · What Google said about it
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October 2026 5 headlines
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June 2026 2 headlines
Spam update June 2026 spam update began 24 Jun
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May 2026 1 headline
Core update May 2026 core update began 21 May
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April 2026 1 headline
How this is built
Every archived headline is tagged with topics by keyword. Each month shows the most significant speed & core web vitals headlines by this site's impact score, plus any Google update that began that month. Months with nothing archived are left out. The archive began in earnest in mid-2025, so earlier months are thin.