1
At a glance the headline numbers for RUM impact
Performance impact by rum provider.
8
Providers ranked
After min-sites filter
9,378
Sites in sample
Combined across all items
0.09
Best CLS (p75)
Netlify Analytics
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Netlify Analytics | 0.09 | 78.5% | 548 | |
| 2 | Sentry | 0.09 | 76.8% | 5,571 | |
| 3 | Vercel Analytics | 0.10 | 76.1% | 415 | |
| 4 | Cloudflare Web Analytics | 0.10 | 75.3% | 1,609 | |
| 5 | Akamai mPulse | 0.17 | 63.8% | 151 | |
| 6 | New Relic Browser | 0.17 | 61.4% | 561 | |
| 7 | Datadog RUM | 0.19 | 63.8% | 341 | |
| 8 | Dynatrace | 0.39 | 32.1% | 182 |
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
DebugBear 0%
8
0.07
Netlify Analytics 0.6%
548
0.09
Sentry 5.9%
5,571
0.09
Vercel Analytics 0.4%
415
0.10
Cloudflare Web Analytics 1.7%
1,609
0.10
SpeedCurve LUX 0%
25
0.10
Datadog RUM 0.4%
341
0.19
Akamai mPulse 0.2%
151
0.17
AppDynamics 0%
13
0.20
New Relic Browser 0.6%
561
0.17
Elastic RUM 0%
42
0.22
Dynatrace 0.2%
182
0.39
Raygun 0%
5
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
79% of Netlify Analytics sites pass CLS. Dynatrace trails 47 points behind, leaving 68% of its sites failing. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · 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 5.9%
852.0s
9787ms
770.09
861.4s
74818ms
Cloudflare Web Analytics 1.7%
852.1s
9881ms
750.10
801.6s
561.2s
New Relic Browser 0.6%
772.4s
9791ms
610.17
721.9s
471.4s
Netlify Analytics 0.6%
812.3s
9389ms
790.09
841.5s
671.0s
Vercel Analytics 0.4%
861.9s
9782ms
760.10
881.3s
79739ms
Datadog RUM 0.4%
662.7s
93125ms
640.19
781.7s
65976ms
Dynatrace 0.2%
752.5s
95118ms
320.39
841.4s
76745ms
Akamai mPulse 0.2%
762.5s
97110ms
640.17
731.8s
511.2s
Elastic RUM 0%
712.6s
94120ms
570.22
811.6s
71852ms
SpeedCurve LUX 0%
901.6s
95119ms
750.10
951.2s
75772ms
AppDynamics 0%
732.5s
10081ms
640.20
642.0s
73832ms
DebugBear 0%
862.0s
100117ms
860.07
861.7s
71898ms
Raygun 0%
03.1s
100114ms
00.23
332.4s
100402ms
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.
Netlify Analytics leads on CLS: 79% of its sites pass. Dynatrace trails at 32%. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals
Tag managers (8) →
A/B testing (10) →
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Chrome field data from 94,910 sites, representing millions of real page loads · How we measured
Chrome field data from 94,910 sites, representing millions of real page loads. How we measured.