The State of Web Vitals

Analytics impact React sites

Sites running each analytics provider, ranked by their CWV.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Phone field outcomes · React sites only
Metric LCP INP CLS
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for Analytics impact

Sites running each analytics provider, ranked by their CWV.

3
Providers ranked
After min-sites filter
7,226
Sites in sample
Combined across all items
0.02
Best CLS (p75)
Universal Analytics
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 Universal Analytics 0.02 89.7%
2,963
2 Matomo 0.02 89.1%
220
3 Google Analytics 4 0.02 89.6%
4,043
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
StatCounter 0.1% 9 100% 0.05
Fathom 0.1% 5 100% 0.08
Adobe Analytics 0.1% 11 91% 0.04
Universal Analytics 31% 2,963 90% 0.02
Google Analytics 4 42.2% 4,043 90% 0.02
Matomo 2.3% 220 89% 0.02
Plausible 0.2% 21 89% 0.02
Umami 0.1% 7 86% 0.06
PostHog 0.1% 8 83% 0.02
Snowplow 0.3% 25 73% 0.15
Mixpanel 0.1% 5 50% 0.22
AT Internet/Piano 0.1% 11 33% 0.50
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site

No provider stands out: pass rates sit between 89% and 90%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
4

All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75

LCP
INP
CLS
FCP
TTFB
Google Analytics 4 42.2%
762.4s
92137ms
900.02
721.9s
571.4s
Universal Analytics 31%
742.5s
92138ms
900.02
692.0s
541.5s
Matomo 2.3%
732.6s
94139ms
890.02
562.2s
351.5s
Snowplow 0.3%
673.2s
79171ms
730.15
532.3s
531.8s
Plausible 0.2%
891.9s
88136ms
890.02
831.6s
611.1s
AT Internet/Piano 0.1%
672.7s
100179ms
330.50
831.7s
331.1s
Adobe Analytics 0.1%
912.2s
50224ms
910.04
552.0s
641.1s
StatCounter 0.1%
502.4s
0206ms
1000.05
502.0s
501.5s
PostHog 0.1%
832.0s
83169ms
830.02
831.5s
501.1s
Umami 0.1%
862.3s
83120ms
860.06
711.8s
291.2s
Fathom 0.1%
1001.4s
100150ms
1000.08
1001.3s
80623ms
Mixpanel 0.1%
253.9s
100157ms
500.22
503.1s
252.1s
60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites

One row per provider, one column per vital - the cell is the share of sites passing, the small number the p75. No toggling needed to see where the category actually differs.

Google Analytics 4 leads on CLS: 90% of its sites pass. Matomo trails at 89%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
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Related signals Marketing pixels (10) → Session recording (11) → Ad networks (9) → Reviews (8) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured