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19% of sites4 technologies
CAPTCHA market share on brand websites
Challenges on forms and pages.
| # | Technology | UK brands | United Kingdom | Global |
|---|---|---|---|---|
| 1 | Google reCAPTCHA | 18% | 19% | 7.3% |
| 2 | hCaptcha | 10% | 8.4% | 1.7% |
| 3 | Cloudflare Turnstile | 0.5% | 1.3% | 1% |
| 4 | Friendly Captcha | 0.2% | 0.1% | 0.1% |
By site popularity
Share of measured sites in each Tranco popularity band that use the technology: the top 1,000, 10,000 and 100,000 sites and the whole top million.
| # | Technology | Top 1K | Top 10K | Top 100K | Top 1M |
|---|---|---|---|---|---|
| 1 | Google reCAPTCHA | 5.3% | 4.4% | 11% | 12% |
| 2 | hCaptcha | 0% | 0.7% | 3% | 5.4% |
| 3 | Cloudflare Turnstile | 0% | 0.7% | 0.4% | 0.4% |
| 4 | Friendly Captcha | 2.6% | 0.7% | 0.6% | 0.4% |
| Sites measured | 38 | 136 | 503 | 689 |
Our crawler: 1,359 sites · UK brands · updated 23 Oct 2026 · Methodology