The State of Web Vitals

Bot detection impact

Performance impact by bot_detection provider.

Field data PhoneDesktopAll Scope All sites Q2 2026 edition · Desktop 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
0.08
Best CLS (p75)
hCaptcha
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 hCaptcha 0.08 80.1%
975
2 Cloudflare Turnstile 0.09 80.9%
386
3 reCAPTCHA 0.10 76.0%
49,427
4 DataDome 0.12 73.1%
227
5 Akamai Bot Manager 0.13 68.5%
173
6 Imperva Bot Management 0.21 61.9%
54
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
Cloudflare Turnstile 0.2% 386 81% 0.09
hCaptcha 0.5% 975 80% 0.08
reCAPTCHA 26% 49,427 76% 0.10
DataDome 0.1% 227 73% 0.12
Akamai Bot Manager 0.1% 173 69% 0.13
Imperva Bot Management 0% 54 62% 0.21
PerimeterX/HUMAN 0% 13 55% 0.22
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

81% of Cloudflare Turnstile sites pass CLS. Akamai Bot Manager trails 12 points behind, leaving 31% 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
reCAPTCHA 26%
832.1s
9970ms
760.10
791.7s
561.3s
hCaptcha 0.5%
901.8s
9875ms
800.08
861.4s
71963ms
Cloudflare Turnstile 0.2%
872.0s
9877ms
810.09
801.6s
561.2s
DataDome 0.1%
812.2s
99103ms
730.12
761.7s
601.3s
Akamai Bot Manager 0.1%
782.4s
92119ms
690.13
731.8s
501.1s
Imperva Bot Management 0%
693.0s
9581ms
620.21
622.3s
481.5s
PerimeterX/HUMAN 0%
554.2s
90144ms
550.22
463.8s
463.5s
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.

Cloudflare Turnstile leads on CLS: 81% of its sites pass. Akamai Bot Manager trails at 69%. computed

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