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 · All devices 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
0.03
Best CLS (p75)
Universal Analytics
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 Universal Analytics 0.03 89.4%
2,963
2 Google Analytics 4 0.03 89.3%
4,043
3 Matomo 0.04 86.6%
220
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
PostHog 0.1% 8 100% 0.02
Fathom 0.1% 5 100% 0.10
Adobe Analytics 0.1% 11 91% 0.04
Universal Analytics 31% 2,963 89% 0.03
Google Analytics 4 42.2% 4,043 89% 0.03
Matomo 2.3% 220 87% 0.04
Umami 0.1% 7 86% 0.06
Plausible 0.2% 21 85% 0.07
Snowplow 0.3% 25 80% 0.09
StatCounter 0.1% 9 75% 0.12
Mixpanel 0.1% 5 40% 0.29
AT Internet/Piano 0.1% 11 20% 0.52
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 87% and 89%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · all devices 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%
772.4s
95115ms
890.03
721.9s
551.4s
Universal Analytics 31%
752.5s
95117ms
890.03
701.9s
531.5s
Matomo 2.3%
752.5s
96124ms
870.04
602.1s
391.5s
Snowplow 0.3%
722.7s
95147ms
800.09
601.9s
561.6s
Plausible 0.2%
852.0s
89130ms
850.07
751.7s
551.1s
AT Internet/Piano 0.1%
702.6s
100129ms
200.52
1001.7s
201.1s
Adobe Analytics 0.1%
822.1s
75192ms
910.04
551.9s
64955ms
StatCounter 0.1%
882.1s
10091ms
750.12
751.6s
381.5s
PostHog 0.1%
752.3s
88140ms
1000.02
751.8s
381.3s
Umami 0.1%
712.5s
83122ms
860.06
571.9s
141.4s
Fathom 0.1%
1001.3s
100138ms
1000.10
1001.3s
60879ms
Mixpanel 0.1%
403.7s
80170ms
400.29
602.8s
401.8s
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: 89% of its sites pass. Matomo trails at 87%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · all devices 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