The State of Web Vitals

CMS

The CMS the site is built on, as a per-site dimension.

Field data PhoneDesktopAll Scope All sites Q1 2026 edition · All devices field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for CMS

The CMS the site is built on, as a per-site dimension.

12
Categories
42,025 sites
73.3%
Top share
wordpress
86ms
Top INP
Median for wordpress

WordPress powers 73.3% of the sites we measured.

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
2

CMS who uses what, and how fast each group loads

Median INP
0
100ms
200ms
300ms
400ms
500ms
ghost74ms0% of sites
wix74ms6% of sites
squarespace78ms2% of sites
drupal80ms4% of sites
joomla82ms3% of sites
wordpress86ms73% of sites
typo386ms0% of sites
adobe_commerce94ms1% of sites
shopify97ms10% of sites
VariantShare of sitesMedian
ghost 19 sites
0%
74ms
wix 2,687 sites
6%
74ms
squarespace 1,010 sites
2%
78ms
drupal 1,608 sites
4%
80ms
joomla 1,222 sites
3%
82ms
wordpress 30,809 sites
73%
86ms
typo3 48 sites
0%
86ms
adobe_commerce 565 sites
1%
94ms
shopify 4,046 sites
10%
97ms

Little daylight between the groups: every variant sits near 74ms median INP. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
3

Passing INP per CMS which group passes the INP most often

VariantSitesPassing INPINP
Ghost 0% 19 100% 74ms
Squarespace 2.4% 1,010 99% 78ms
Adobe commerce 1.3% 565 99% 94ms
Wordpress 73.3% 30,809 98% 86ms
Wix 6.4% 2,687 97% 74ms
Drupal 3.8% 1,608 97% 80ms
Shopify 9.6% 4,046 96% 97ms
Joomla 2.9% 1,222 95% 82ms
Typo3 0.1% 48 90% 86ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

No variant stands out: pass rates sit between 95% and 99%. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
4

Why this matters for the Core Web Vitals, and where to start fixing it

The CMS decides your defaults: the theme's markup, the plugin economy, how images are sized, what loads in the head. Most sites never change those defaults, so the platform's choices become the platform's vitals.

No platform is doomed and none is safe. The spread inside a platform is bigger than the gap between platforms: a tuned site on a slow-median CMS beats a neglected site on a fast one. The platform pages rank them on real field data.

How does this affect the Core Web Vitals?

The choice barely moves the INP: 99% pass at best, 95% at worst. This signal does not separate passing sites from failing ones.

The split is bigger on LCP. With Shopify, 96% of sites pass it. With WordPress, 71% do.

Go fix it CMS standings → WordPress Core Web Vitals guide → Shopify Core Web Vitals guide →
Related signals Analytics on page → Optimization plugins → Cookie wall detected → JS framework → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured