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.
| # | 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 |
|---|---|---|---|
| wigantoday.net | #121,686 | Cloudflare Bot Management, Cloudflare edge/CDN, Dotmetrics + 10 more | Find emails |
| ksc.ru | #121,689 | Bitrix, Font Awesome, Let's Encrypt + 5 more | Find emails |
| inube.com | #121,693 | Google Analytics, Google Hosted Libraries, Let's Encrypt + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| luckygunner.com | #121,711 | Cloudflare, Cloudflare edge/CDN, Disqus + 15 more | Find emails |
| avax-test.network | #121,720 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| rallydesign.co.uk | #121,737 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| poundland.co.uk | #121,743 | Cloudflare edge/CDN, Google Trust Services, Microsoft 365 + 3 more | Find emails |
| mangazin.org | #121,747 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| ldc.ru | #121,756 | Apache, Bootstrap, Fancybox + 9 more | Find emails |
| joetsu.ne.jp | #121,792 | All in One SEO, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| aq.com | #121,795 | ASP.NET, Bootstrap, Cloudflare + 12 more | Find emails |
| intrepidmuseum.org | #121,819 | Drupal, Fastly, GTranslate + 9 more | Find emails |
| minisforum.com | #121,835 | Alibaba Cloud DNS, Cloudflare edge/CDN, Fancybox + 16 more | Find emails |
| onemedicalpassport.com | #121,871 | Amazon (ACM), Amazon Route 53, Google Analytics + 4 more | Find emails |
| starkfuture.com | #121,892 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| checkio.org | #121,896 | Django, Google Analytics, Google Fonts + 9 more | Find emails |
| themebeez.com | #121,916 | Cloudflare, Cloudflare edge/CDN, Elementor + 13 more | Find emails |
| omacshop.com | #121,928 | Cloudflare edge/CDN, Let's Encrypt, Microsoft 365 + 3 more | Find emails |
| alphadictionary.com | #121,940 | Apache, Google AdSense, Google Analytics + 8 more | Find emails |
| nottinghamcity.gov.uk | #121,941 | ASP.NET, Bootstrap, Cloudflare Bot Management + 12 more | Find emails |
| affordablegolf.co.uk | #121,946 | Attentive, Bootstrap, Cloudflare + 17 more | Find emails |
| melissaanddoug.com | #121,975 | Attentive, Bazaarvoice, Cloudflare edge/CDN + 7 more | Find emails |
| record-eagle.com | #121,991 | Blockthrough, Confiant, Empower Local + 12 more | Find emails |
| dpdlocal.co.uk | #121,992 | Akamai Edge DNS, Font Awesome, Foundation + 8 more | Find emails |
| auburnpub.com | #121,994 | 33Across, Advertising.com, Amazon Advertising + 40 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →