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
534,273
98
India
197,700
76
United Kingdom
181,539
66
Japan
172,940
48
Brazil
145,709
33
France
145,372
49
Canada
138,940
84
Spain
131,068
60
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 | 750 ms |
Median site's p75 values from the Chrome UX Report, Aug 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 |