1
At a glance the headline numbers for RUM impact
Performance impact by rum provider.
4
Providers ranked
After min-sites filter
6,282
Sites in sample
Combined across all items
0.02
Best CLS (p75)
Vercel Analytics
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Vercel Analytics | 0.02 | 100.0% | 208 | |
| 2 | Sentry | 0.02 | 93.1% | 5,930 | |
| 3 | Cloudflare Web Analytics | 0.13 | 70.2% | 65 | |
| 4 | Netlify Analytics | 0.14 | 66.7% | 79 |
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Vercel Analytics 2.2% 208 0.02
Akamai mPulse 0.2% 15 0.04
Sentry 62% 5,930 0.02
New Relic Browser 0.3% 26 0.05
Cloudflare Web Analytics 0.7% 65 0.13
Netlify Analytics 0.8% 79 0.14
Elastic RUM 0.1% 6 0.18
Datadog RUM 0.2% 16 0.20
SpeedCurve LUX 0.1% 6 0.23
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
100% of Vercel Analytics sites pass CLS. Sentry trails 7 points behind. computed
The State of Web Vitals · October 2026 · React sites (9,570) · desktop 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
Sentry 62%
911.7s
9953ms
930.02
91904ms
71956ms
Vercel Analytics 2.2%
871.9s
10063ms
1000.02
811.5s
631.5s
Netlify Analytics 0.8%
672.7s
10086ms
670.14
672.3s
501.8s
Cloudflare Web Analytics 0.7%
682.8s
10080ms
700.13
622.5s
352.4s
New Relic Browser 0.3%
792.2s
9381ms
930.05
711.9s
641.4s
Datadog RUM 0.2%
503.4s
100154ms
330.20
672.0s
75852ms
Akamai mPulse 0.2%
871.8s
100131ms
1000.04
871.5s
80741ms
Elastic RUM 0.1%
831.6s
10088ms
670.18
100996ms
83681ms
SpeedCurve LUX 0.1%
1001.6s
100152ms
170.23
1001.1s
100723ms
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.
Vercel Analytics leads on CLS: 100% of its sites pass. Sentry trails at 93%. computed
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Tag managers (8) → A/B testing (12) → Consent platforms (16) → Reviews (8) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.