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
603,209
120
India
224,820
92
United Kingdom
207,765
78
Japan
199,902
59
France
176,039
65
Canada
160,997
96
Brazil
159,360
41
Spain
153,221
69
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, Jun 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 |