RUM impact

Performance impact by rum provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Phone field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for RUM impact

Performance impact by rum provider.

10
Providers ranked
After min-sites filter
20,342
Sites in sample
Combined across all items
1.7s
Best LCP (p75)
SpeedCurve LUX
The State of Web Vitals · October 2026 · 212,308 crawled sites · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 SpeedCurve LUX 1.7s 92.2%
61
2 Sentry 2.0s 85.2%
12,104
3 Vercel Analytics 2.2s 82.7%
889
4 Cloudflare Web Analytics 2.3s 80.4%
3,469
5 New Relic Browser 2.5s 74.2%
1,101
6 Netlify Analytics 2.6s 72.0%
1,169
7 Dynatrace 2.6s 66.8%
382
8 Elastic RUM 2.9s 57.6%
84
9 Akamai mPulse 3.1s 58.7%
323
10 Datadog RUM 4.6s 42.7%
760
The State of Web Vitals · October 2026 · 212,308 crawled sites · phone field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
SpeedCurve LUX 0% 61 92% 1.7s
Sentry 5.7% 12,104 85% 2.0s
Vercel Analytics 0.4% 889 83% 2.2s
Cloudflare Web Analytics 1.6% 3,469 80% 2.3s
DebugBear 0% 17 75% 2.4s
Raygun 0% 14 75% 2.6s
New Relic Browser 0.5% 1,101 74% 2.5s
Netlify Analytics 0.6% 1,169 72% 2.6s
Dynatrace 0.2% 382 67% 2.6s
AppDynamics 0% 22 59% 3.2s
Akamai mPulse 0.2% 323 59% 3.1s
Elastic RUM 0% 84 58% 2.9s
Datadog RUM 0.4% 760 43% 4.6s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site

85% of Sentry sites pass LCP. Datadog RUM trails 42 points behind, leaving 57% of its sites failing. computed

The State of Web Vitals · October 2026 · 212,308 crawled sites · 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
Sentry 5.7%
852.0s
86151ms
860.04
841.5s
77754ms
Cloudflare Web Analytics 1.6%
802.3s
82171ms
800.08
761.8s
571.1s
Netlify Analytics 0.6%
722.6s
77191ms
750.11
721.9s
531.1s
New Relic Browser 0.5%
742.5s
86163ms
780.09
682.0s
521.2s
Vercel Analytics 0.4%
832.2s
89153ms
900.03
791.6s
79701ms
Datadog RUM 0.4%
434.6s
48295ms
460.39
533.0s
64979ms
Dynatrace 0.2%
672.6s
62222ms
400.77
821.6s
78747ms
Akamai mPulse 0.2%
593.1s
73204ms
800.09
582.2s
451.0s
Elastic RUM 0%
582.9s
72204ms
670.20
711.9s
71860ms
SpeedCurve LUX 0%
921.7s
73205ms
820.08
921.3s
78771ms
AppDynamics 0%
593.2s
63214ms
650.16
532.1s
591.0s
DebugBear 0%
752.4s
81193ms
810.06
632.0s
631.1s
Raygun 0%
752.6s
90170ms
580.33
751.7s
83722ms
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 LCP: 85% of its sites pass. Datadog RUM trails at 43%. computed

The State of Web Vitals · October 2026 · 212,308 crawled sites · phone field datacorewebvitals.io/state-of-cwv
Related signals Tag managers (8) → A/B testing (12) → Consent platforms (16) → Reviews (8) → 212,308 crawled sites with Chrome field data, representing millions of real page loads · How we measured