CAPTCHA & Bot Protection
56,649 of the 965,200 top sites in our Tranco top-1M census run reCAPTCHA (5.9%). 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 | one.one | #160 (Tranco) | Find emails |
| 2 | pki.goog | #218 (Tranco) | Find emails |
| 3 | t-online.de | #220 (Tranco) | Find emails |
| 4 | dnsmadeeasy.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| cyberfuel.com | #38,234 | Google Tag Manager, Sectigo, WhatsApp Business (click-to-chat) + 2 more | Find emails |
| shoecarnival.com | #38,244 | AB Tasty, Amazon CloudFront, Amplience + 10 more | Find emails |
| stardoll.com | #38,246 | Akamai Edge DNS, DigiCert, Google Analytics + 4 more | Find emails |
| #291 (Tranco) |
| Find emails |
| 5 | duckdns.org | #295 (Tranco) | Find emails |
| tapinto.net | #38,317 | Amazon (ACM), Amazon CloudFront, Google Analytics + 6 more | Find emails |
| iodonna.it | #38,320 | Fastly, Google Fonts, Google Publisher Tag + 10 more | Find emails |
| mot.com | #38,331 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 2 more | Find emails |
| uokik.gov.pl | #38,360 | Bootstrap, Font Awesome, jQuery UI + 1 more | Find emails |
| sud.kz | #38,363 | Drupal, Google Analytics, Google Tag Manager + 4 more | Find emails |
| ablesign.tv | #38,419 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| transtore.app | #38,426 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| new-rus.tv | #38,431 | Amazon Route 53, Bootstrap, Cookiebot + 8 more | Find emails |
| redecor.com | #38,433 | Amazon Route 53, DigiCert, Google Analytics + 8 more | Find emails |
| studypool.com | #38,446 | Cloudflare, Cloudflare edge/CDN, DigiCert + 11 more | Find emails |
| kentik.com | #38,450 | Contentful, Gatsby, Google Cloud DNS + 7 more | Find emails |
| riu.edu.ar | #38,487 | Font Awesome, Google Fonts, Let's Encrypt + 4 more | Find emails |
| kpnqwest.it | #38,501 | ASP.NET, Bootstrap, Cookiebot + 7 more | Find emails |
| madmimi.com | #38,538 | GoDaddy, Microsoft 365, Modernizr + 2 more | Find emails |
| zong.com.pk | #38,542 | Google AdSense, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| goldenglobes.com | #38,565 | Adobe Fonts (Typekit), Amazon Route 53, Google Analytics + 7 more | Find emails |
| farmandfleet.com | #38,569 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| ssh.com | #38,622 | AOS, Adobe Fonts (Typekit), Amazon Route 53 + 9 more | Find emails |
| getnet.com.br | #38,623 | AOS, Akamai Bot Manager, Akamai Edge DNS + 9 more | Find emails |
| daft.ie | #38,661 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| bangbros.com | #38,691 | Cloudflare, Google Fonts, Let's Encrypt + 3 more | Find emails |
| udl.cat | #38,700 | Bootstrap, Cookiebot, Google Analytics + 5 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →