reCAPTCHA vs Slider Captcha
Head-to-head usage across the sites we track.
Top sites by authority
reCAPTCHA · Slider Captcha · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
reCAPTCHA · Slider Captcha · share of sites in each country using one or the other
United States
521,768
99
India
193,784
75
United Kingdom
180,414
64
Japan
171,305
47
France
146,342
52
Brazil
142,702
33
Spain
138,105
63
Canada
138,004
87
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | reCAPTCHA | Slider Captcha |
|---|---|---|
| LCP | 2 s | 2.2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
reCAPTCHA to Slider Captcha
| Domain | When |
|---|---|
| top-kal.com | Apr 2026 |