Which CMS wins Core Web Vitals?
The league table share of sites passing — overall, then metric by metric
Sorted by the share passing all three Core Web Vitals. Each cell is the share of that platform’s sites passing that metric; the small number is the p75.
Cell shade tracks the share of each platform’s sites passing that metric (red → green); the small number is the p75. INP is solved across the board — the real fights are LCP and TTFB, where WordPress trails.
Market share vs. speed does popularity buy performance?
Each bubble is a platform, sized by how many sites run it. Up = a higher share passing all three CWV.
Bubble size = number of sites. WordPress is the giant anchored bottom-right — by far the most popular, and the slowest; everyone smaller clears a higher bar.
The spread behind the pass-rate the split a single number hides
A pass-rate is one number; this is the good / needs-work / poor split underneath it, per metric. Sorted by overall standing.
“Pass” = good on LCP and INP and CLS together. 212,308 crawled sites with Chrome field data, representing millions of real page loads, October 2026 edition. How we measured.