1
At a glance the headline numbers for Bot detection impact
Performance impact by bot_detection provider.
6
Providers ranked
After min-sites filter
51,303
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 | 91.5% | 979 | |
| 2 | reCAPTCHA | 0.03 | 87.1% | 49,481 | |
| 3 | DataDome | 0.05 | 83.1% | 227 | |
| 4 | Cloudflare Turnstile | 0.07 | 79.2% | 387 | |
| 5 | Imperva Bot Management | 0.09 | 77.8% | 55 | |
| 6 | Akamai Bot Manager | 0.12 | 73.8% | 174 |
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% 979 0.02
reCAPTCHA 26% 49,481 0.03
DataDome 0.1% 227 0.05
PerimeterX/HUMAN 0% 13 0.07
Cloudflare Turnstile 0.2% 387 0.07
Imperva Bot Management 0% 55 0.09
Akamai Bot Manager 0.1% 174 0.12
Kasada 0% 2 0.65
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
DataDome 0.1%
692.7s
75198ms
830.05
731.9s
561.3s
Akamai Bot Manager 0.1%
672.8s
62242ms
740.12
572.1s
391.2s
Cloudflare Turnstile 0.2%
832.2s
79178ms
790.07
761.7s
571.2s
PerimeterX/HUMAN 0%
554.1s
50287ms
820.07
363.8s
363.2s
reCAPTCHA 26%
762.5s
92136ms
870.03
692.0s
521.3s
hCaptcha 0.5%
852.0s
86153ms
910.02
811.6s
69975ms
Imperva Bot Management 0%
692.7s
79193ms
780.09
582.3s
511.1s
Kasada 0%
5013.9s
0329ms
500.65
502.5s
501.1s
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 (14) → Marketing pixels (10) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured
Chrome field data from 189,915 sites, representing millions of real page loads. How we measured.