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
0.04
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% | 979 | |
| 2 | DataDome | 0.05 | 82.3% | 227 | |
| 3 | reCAPTCHA | 0.05 | 86.0% | 49,481 | |
| 4 | Cloudflare Turnstile | 0.08 | 80.6% | 387 | |
| 5 | Imperva Bot Management | 0.11 | 74.5% | 55 | |
| 6 | Akamai Bot Manager | 0.12 | 73.4% | 174 |
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% 979 0.04
reCAPTCHA 26% 49,481 0.05
PerimeterX/HUMAN 0% 13 0.05
DataDome 0.1% 227 0.05
Cloudflare Turnstile 0.2% 387 0.08
Imperva Bot Management 0% 55 0.11
Akamai Bot Manager 0.1% 174 0.12
Kasada 0% 2 0.57
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 17 points behind, leaving 27% 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
DataDome 0.1%
792.3s
86156ms
820.05
811.6s
65997ms
Akamai Bot Manager 0.1%
682.7s
73205ms
730.12
622.0s
391.2s
Cloudflare Turnstile 0.2%
822.2s
84149ms
810.08
751.8s
541.3s
PerimeterX/HUMAN 0%
623.5s
73220ms
850.05
463.3s
462.8s
reCAPTCHA 26%
772.4s
95114ms
860.05
712.0s
511.4s
hCaptcha 0.5%
862.0s
93130ms
900.04
801.6s
671.1s
Imperva Bot Management 0%
653.3s
90146ms
750.11
582.3s
471.4s
Kasada 0%
5012.1s
50262ms
500.57
502.2s
501.0s
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 73%. 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 (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.