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 · Phone 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
96ms
Top INP
Median for wordpress

WordPress powers 73.3% of the sites we measured.

The State of Web Vitals · Q1 2026 · 94,910 sites · phone 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
wix78ms6% of sites
joomla87ms3% of sites
squarespace87ms2% of sites
typo394ms0% of sites
wordpress96ms73% of sites
drupal99ms4% of sites
shopify111ms10% of sites
adobe_commerce112ms1% of sites
VariantShare of sitesMedian
wix 2,687 sites
6%
78ms
joomla 1,222 sites
3%
87ms
squarespace 1,010 sites
2%
87ms
typo3 48 sites
0%
94ms
wordpress 30,809 sites
73%
96ms
drupal 1,608 sites
4%
99ms
shopify 4,046 sites
10%
111ms
adobe_commerce 565 sites
1%
112ms

Little daylight between the groups: every variant sits near 78ms median INP. computed

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

Passing INP per CMS which group passes the INP most often

VariantSitesPassing INPINP
Squarespace 2.4% 1,010 99% 87ms
Wordpress 73.3% 30,809 97% 96ms
Adobe commerce 1.3% 565 97% 112ms
Wix 6.4% 2,687 96% 78ms
Drupal 3.8% 1,608 94% 99ms
Joomla 2.9% 1,222 94% 87ms
Shopify 9.6% 4,046 94% 111ms
Typo3 0.1% 48 90% 94ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site

99% of Squarespace sites pass INP. Shopify trails 5 points behind. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone 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?

CMS correlates with the INP. With Squarespace, 99% of sites pass the INP. With Drupal, 94% do. The causal link is weak: the choice mostly marks what kind of site made it.

The split is bigger on LCP. With Shopify, 95% of sites pass it. With WordPress, 70% 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