The State of Web Vitals

Bot detection impact

Performance impact by bot_detection provider.

Field data PhoneDesktopAll Scope All sites Q2 2026 edition · Phone 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
0.02
Best CLS (p75)
hCaptcha
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 hCaptcha 0.02 91.4%
975
2 reCAPTCHA 0.03 87.1%
49,427
3 DataDome 0.05 83.1%
227
4 Cloudflare Turnstile 0.07 79.1%
386
5 Imperva Bot Management 0.09 77.3%
54
6 Akamai Bot Manager 0.12 74.2%
173
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
hCaptcha 0.5% 975 91% 0.02
reCAPTCHA 26% 49,427 87% 0.03
DataDome 0.1% 227 83% 0.05
PerimeterX/HUMAN 0% 13 82% 0.06
Cloudflare Turnstile 0.2% 386 79% 0.07
Imperva Bot Management 0% 54 77% 0.09
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

91% of hCaptcha sites pass CLS. Akamai Bot Manager trails 17 points behind, leaving 26% of its sites failing. computed

The State of Web Vitals · Q2 2026 · 189,915 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
reCAPTCHA 26%
762.5s
92136ms
870.03
692.0s
521.3s
hCaptcha 0.5%
852.0s
86153ms
910.02
811.6s
69977ms
Cloudflare Turnstile 0.2%
832.2s
79178ms
790.07
761.7s
581.2s
DataDome 0.1%
692.7s
75201ms
830.05
731.9s
561.3s
Akamai Bot Manager 0.1%
672.8s
63241ms
740.12
572.1s
391.2s
Imperva Bot Management 0%
682.8s
79193ms
770.09
572.3s
501.2s
PerimeterX/HUMAN 0%
554.0s
50266ms
820.06
363.6s
362.7s
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: 91% of its sites pass. Akamai Bot Manager trails at 74%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · phone 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