CAPTCHA & Bot Protection
91,344 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9.1%). Google's CAPTCHA/bot-scoring widget, the most widely deployed CAPTCHA by far. Detection is homepage-level HTML/header fingerprinting, so a site can run reCAPTCHA on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | snapchat.com | #123 (Tranco) | Find emails |
| 2 | apache.org | #125 (Tranco) | Find emails |
| 3 | one.one | #160 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| tubeninja.net | #73,162 | Bootstrap, Django, Font Awesome + 8 more | Find emails |
| nextra.sk | #73,178 | Adobe Fonts (Typekit), DigiCert, Django + 8 more | Find emails |
| loveread.info | #73,179 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| ines.ro |
| #73,196 |
| AOS, Apache, Bootstrap + 14 more |
| Find emails |
| darkwar-survival.com | #73,202 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| thaiflirting.com | #73,206 | Cloudflare, Google AdSense, Google Analytics + 10 more | Find emails |
| urban-planet.com | #73,222 | Cloudflare edge/CDN, ConsentMo, CrazyEgg + 11 more | Find emails |
| dbp.gov.my | #73,245 | DigiCert, Font Awesome, Google Analytics + 6 more | Find emails |
| loombard.pl | #73,251 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| torecolo.jp | #73,255 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 14 more | Find emails |
| plazastyle.com | #73,287 | Adobe Fonts (Typekit), Amazon CloudFront, GSAP + 13 more | Find emails |
| dm.hr | #73,295 | Let's Encrypt, reCAPTCHA Enterprise | Find emails |
| sittercity.com | #73,324 | Contentful, Dynatrace, Envoy + 7 more | Find emails |
| arenal.com | #73,327 | Awin, Cloudflare, ConsentMo + 8 more | Find emails |
| sesieducacao.com.br | #73,329 | Google Tag Manager, Let's Encrypt, Microsoft 365 + 3 more | Find emails |
| russopower.com | #73,340 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| putzperle.de | #73,342 | Cloudflare, ConsentMo, Cookiebot + 6 more | Find emails |
| fellowproducts.com | #73,431 | Amplitude, Attentive, Cloudflare edge/CDN + 11 more | Find emails |
| nafezly.com | #73,444 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| metronews.ca | #73,451 | Amazon Advertising, Amazon Route 53, Blockthrough + 13 more | Find emails |
| hanime.red | #73,491 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| marella.com | #73,500 | Akamai Bot Manager, Akamai edge/CDN, Akamai mPulse + 9 more | Find emails |
| pimkie.fr | #73,505 | Adobe Fonts, Adobe Fonts (Typekit), CSC (Digital Brand Services) + 8 more | Find emails |
| markate.com | #73,506 | Apache, Blogger, Font Awesome + 12 more | Find emails |
| ladypipa.com | #73,512 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →