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
2.8s
Best LCP (p75)
reCAPTCHA
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by LCP at p75, fastest first
| # | Provider | LCP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | reCAPTCHA | 2.8s | 68.6% | 1,700 |
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
3
Passing LCP per provider which group passes the LCP most often
ProviderSitesPassing LCPp75
Akamai Bot Manager 0.1% 14 2.1s
hCaptcha 0.2% 21 2.4s
reCAPTCHA 17.8% 1,700 2.8s
Cloudflare Turnstile 0.2% 17 3.0s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site
The State of Web Vitals · October 2026 · React sites (9,570) · 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
reCAPTCHA 17.8%
692.8s
94124ms
850.05
642.2s
451.7s
hCaptcha 0.2%
762.4s
87159ms
620.27
711.9s
531.6s
Cloudflare Turnstile 0.2%
653.0s
93163ms
820.04
532.3s
411.4s
Akamai Bot Manager 0.1%
792.1s
77198ms
1000.05
571.9s
141.3s
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) · all devices 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.