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Privacy & Security
5 captcha & bot-defense tools are used by 100 or more of the 146,814 sites we track in this category. Pick one to see the top websites using it, ranked by traffic.
Share of the 146,814 CAPTCHA sites in our database.
Sites often use more than one, so shares can add up to more than 100%.
Sortable by adoption, share, median authority, and median traffic. Figures are based on the sites we track, not global market data.
| # | Technology | ||||
|---|---|---|---|---|---|
| 1 | reCAPTCHA | 131,825 | 90% | 27 | 4,535 |
| 2 | Cloudflare Turnstile | 10,973 | 7.5% | 31 | 4,923 |
| 3 | hCaptcha | 4,483 | 3.1% | 25 | 4,709 |
| 4 | AWS WAF Captcha | 661 | 0.5% | 34 | 7,245 |
| 5 | BotDetect | 591 | 0.4% | 51 | 5,465 |