1
At a glance the headline numbers for RUM impact
Performance impact by rum provider.
10
Providers ranked
After min-sites filter
18,042
Sites in sample
Combined across all items
0.09
Best CLS (p75)
Sentry
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Sentry | 0.09 | 77.1% | 10,720 | |
| 2 | Netlify Analytics | 0.10 | 76.5% | 1,024 | |
| 3 | Cloudflare Web Analytics | 0.10 | 76.4% | 3,072 | |
| 4 | Vercel Analytics | 0.11 | 74.2% | 760 | |
| 5 | SpeedCurve LUX | 0.13 | 68.8% | 56 | |
| 6 | Akamai mPulse | 0.14 | 67.7% | 281 | |
| 7 | New Relic Browser | 0.15 | 66.8% | 993 | |
| 8 | Datadog RUM | 0.21 | 61.2% | 708 | |
| 9 | Elastic RUM | 0.26 | 51.5% | 79 | |
| 10 | Dynatrace | 0.39 | 35.5% | 349 |
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Request metrics 0% 3 0.10
DebugBear 0% 16 0.08
Sentry 5.6% 10,720 0.09
Netlify Analytics 0.5% 1,024 0.10
Cloudflare Web Analytics 1.6% 3,072 0.10
Vercel Analytics 0.4% 760 0.11
SpeedCurve LUX 0% 56 0.13
Akamai mPulse 0.1% 281 0.14
New Relic Browser 0.5% 993 0.15
Raygun 0% 12 0.16
Datadog RUM 0.4% 708 0.21
AppDynamics 0% 21 0.14
Elastic RUM 0% 79 0.26
Dynatrace 0.2% 349 0.39
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
77% of Sentry sites pass CLS. Dynatrace trails 42 points behind, leaving 65% of its sites failing. computed
The State of Web Vitals · Q2 2026 · 189,915 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
Dynatrace 0.2%
782.4s
94118ms
350.39
871.4s
78707ms
Datadog RUM 0.4%
672.8s
92131ms
610.21
771.7s
68943ms
Netlify Analytics 0.5%
812.3s
9391ms
760.10
841.5s
70990ms
Akamai mPulse 0.1%
782.4s
94117ms
680.14
781.7s
59950ms
AppDynamics 0%
712.7s
10091ms
590.14
711.8s
65865ms
SpeedCurve LUX 0%
961.5s
98106ms
690.13
961.2s
79737ms
Request metrics 0%
1002.0s
10062ms
1000.10
1001.3s
100786ms
DebugBear 0%
802.2s
87119ms
800.08
801.8s
671.2s
Sentry 5.6%
852.1s
9786ms
770.09
861.4s
74829ms
Cloudflare Web Analytics 1.6%
842.1s
9879ms
760.10
801.6s
551.2s
Vercel Analytics 0.4%
871.9s
9881ms
740.11
871.3s
79746ms
New Relic Browser 0.5%
772.4s
9790ms
670.15
711.9s
491.4s
Elastic RUM 0%
692.6s
95119ms
520.26
851.5s
75800ms
Raygun 0%
632.7s
100115ms
630.16
751.2s
100553ms
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.
Sentry leads on CLS: 77% of its sites pass. Dynatrace trails at 35%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
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