CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (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 | 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 |
|---|---|---|---|
| jetboaters.net | #107,638 | Apache, ConsentMo, Google Analytics + 5 more | Find emails |
| legalblink.it | #107,641 | Bootstrap, Calendly, Cloudflare + 14 more | Find emails |
| carts.guru | #107,645 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 23 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| mriyaresort.com | #107,656 | Bitrix, Mail.ru Analytics (Top100), PHP + 7 more | Find emails |
| govacademyhub.com | #107,732 | Akamai edge/CDN, Cloudflare, Cloudflare edge/CDN + 1 more | Find emails |
| gsmchoice.com | #107,733 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| theeagle.com | #107,745 | Amazon Advertising, Apache, AppNexus + 31 more | Find emails |
| venyoo.ru | #107,780 | AOS, Bootstrap, Fancybox + 16 more | Find emails |
| tourneau.com | #107,795 | Affirm, Cloudflare edge/CDN, DigiCert + 6 more | Find emails |
| easypromosapp.com | #107,802 | Bootstrap, CookieFirst, DigiCert + 23 more | Find emails |
| hub88.io | #107,816 | Amazon (ACM), Cloudflare, Cloudflare Bot Management + 16 more | Find emails |
| hostcats.com | #107,842 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| laimoon.com | #107,847 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| cgt.fr | #107,849 | Drupal, Let's Encrypt, Matomo + 4 more | Find emails |
| skinsmonkey.com | #107,859 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| virtualroom.ru | #107,866 | Google Analytics, Google Fonts, Google Tag Manager + 8 more | Find emails |
| broadbandsearch.net | #107,880 | Amazon (ACM), Amazon Route 53, BrightEdge + 4 more | Find emails |
| fuorisalone.it | #107,889 | Amazon (ACM), Amazon CloudFront, Google Analytics + 4 more | Find emails |
| configr.com | #107,924 | Bootstrap, Express, Fastly + 19 more | Find emails |
| bevisible.online | #107,938 | AddToAny, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| brainhq.com | #107,942 | Clicky, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| 35awards.com | #107,944 | Bootstrap, Font Awesome, Google Ads Conversion + 13 more | Find emails |
| carlsgolfland.com | #107,946 | Affirm, Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| noondaycollection.com | #107,961 | Cloudflare edge/CDN, Klaviyo, Let's Encrypt + 5 more | Find emails |
| vnda.com.br | #107,963 | Amazon CloudFront, Amazon Route 53, Cloudflare Bot Management + 6 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →