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
0.08
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 | 80.0% | 979 | |
| 2 | Cloudflare Turnstile | 0.09 | 80.4% | 387 | |
| 3 | reCAPTCHA | 0.10 | 76.0% | 49,481 | |
| 4 | DataDome | 0.12 | 73.1% | 227 | |
| 5 | Akamai Bot Manager | 0.13 | 68.1% | 174 | |
| 6 | Imperva Bot Management | 0.21 | 62.8% | 55 |
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% 387 0.09
hCaptcha 0.5% 979 0.08
reCAPTCHA 26% 49,481 0.10
DataDome 0.1% 227 0.12
Akamai Bot Manager 0.1% 174 0.13
Imperva Bot Management 0% 55 0.21
PerimeterX/HUMAN 0% 13 0.27
Kasada 0% 2 0.41
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
80% of Cloudflare Turnstile sites pass CLS. Akamai Bot Manager trails 12 points behind, leaving 32% 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
DataDome 0.1%
812.2s
99103ms
730.12
761.7s
601.3s
Akamai Bot Manager 0.1%
782.4s
91119ms
680.13
731.8s
501.1s
Cloudflare Turnstile 0.2%
872.0s
9877ms
800.09
801.6s
561.2s
PerimeterX/HUMAN 0%
554.8s
90154ms
550.27
454.0s
453.9s
reCAPTCHA 26%
832.1s
9969ms
760.10
781.7s
561.3s
hCaptcha 0.5%
901.8s
9875ms
800.08
861.4s
71963ms
Imperva Bot Management 0%
703.0s
9581ms
630.21
632.3s
491.5s
Kasada 0%
509.2s
100169ms
00.41
1001.5s
50831ms
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: 80% of its sites pass. Akamai Bot Manager trails at 68%. 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 (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.