The State of Web Vitals

Bot detection impact

Performance impact by bot_detection provider.

Field data PhoneDesktopAll Scope All sites Q2 2026 edition · All devices field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for Bot detection impact

Performance impact by bot_detection provider.

6
Providers ranked
After min-sites filter
51,242
Sites in sample
Combined across all items
0.04
Best CLS (p75)
hCaptcha
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 hCaptcha 0.04 90.1%
975
2 DataDome 0.05 82.3%
227
3 reCAPTCHA 0.05 86.0%
49,427
4 Cloudflare Turnstile 0.08 80.5%
386
5 Imperva Bot Management 0.11 74.1%
54
6 Akamai Bot Manager 0.12 73.8%
173
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
hCaptcha 0.5% 975 90% 0.04
reCAPTCHA 26% 49,427 86% 0.05
PerimeterX/HUMAN 0% 13 85% 0.05
DataDome 0.1% 227 82% 0.05
Cloudflare Turnstile 0.2% 386 81% 0.08
Imperva Bot Management 0% 54 74% 0.11
Akamai Bot Manager 0.1% 173 74% 0.12
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

90% of hCaptcha sites pass CLS. Akamai Bot Manager trails 16 points behind, leaving 26% of its sites failing. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · 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
reCAPTCHA 26%
772.4s
96114ms
860.05
712.0s
511.4s
hCaptcha 0.5%
862.0s
93130ms
900.04
801.6s
671.1s
Cloudflare Turnstile 0.2%
822.2s
84149ms
810.08
751.8s
541.3s
DataDome 0.1%
792.3s
87156ms
820.05
821.6s
651.0s
Akamai Bot Manager 0.1%
682.7s
74205ms
740.12
622.0s
391.2s
Imperva Bot Management 0%
653.2s
90147ms
740.11
572.3s
461.4s
PerimeterX/HUMAN 0%
623.5s
73209ms
850.05
463.3s
462.8s
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.

hCaptcha leads on CLS: 90% of its sites pass. Akamai Bot Manager trails at 74%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals Push notifications (5) → Image CDNs (9) → RUM (13) → Marketing pixels (10) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured