Bot detection impact React sites
Performance impact by bot_detection provider.
1
At a glance the headline numbers for Bot detection impact
Performance impact by bot_detection provider.
1
Providers ranked
After min-sites filter
1,700
Sites in sample
Combined across all items
0.13
Best CLS (p75)
reCAPTCHA
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
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The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | reCAPTCHA | 0.13 | 69.9% | 1,700 |
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
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Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Akamai Bot Manager 0.1% 14 0.06
Cloudflare Turnstile 0.2% 17 0.07
reCAPTCHA 17.8% 1,700 0.13
hCaptcha 0.2% 21 0.17
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
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
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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 17.8%
702.8s
9974ms
700.13
642.2s
371.9s
hCaptcha 0.2%
831.9s
8094ms
330.17
831.6s
401.4s
Cloudflare Turnstile 0.2%
902.0s
8879ms
800.07
701.8s
561.4s
Akamai Bot Manager 0.1%
861.8s
100132ms
930.06
791.6s
571.1s
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.
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Push notifications (5) → Image CDNs (9) → RUM (14) → Marketing pixels (10) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.