Joomla — Core Web Vitals

Field data PhoneDesktopAll October 2026 edition · Desktop field outcomes
70.9% of Joomla sites pass all three Core Web Vitals
  • #6 of 12 CMSs by overall pass rate
  • Add TTFB and only 49.3% still pass
  • Runs on 1.2% of all sites measured (2,551 crawled Joomla sites, 394 with desktop field data)

The distribution, not just the median

Each bar is the good / needs-work / poor split for Joomla. The marks where the whole fleet sits, so you can see who is ahead and who is behind.

LCP 1.8s p75
92.5% good ▲ fleet 86.1%
INP 49ms p75
99.7% good ▲ fleet 98.9%
CLS 0.08 p75
79.1% good ▲ fleet 77.9%
TTFB diagnostic 966ms p75
64.3% good ▲ fleet 63.1%
FCP diagnostic 1.5s p75
85.8% good ▲ fleet 82.3%
Joomla is strong across the board. Even its weakest metric, INP (99.7% good), is ahead of the fleet’s 98.9%. The fingerprint shows the habits behind it.

CMS standings

All CMSs →

210,902 crawled sites (69,745 with desktop Chrome field data), representing millions of real page loads, October 2026 edition. How we measured.