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 |
|---|---|---|---|
| nitroapps.co | #80,651 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 4 more | Find emails |
| usecorner.io | #80,677 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 5 more | Find emails |
| acs-cis.ru | #80,684 | Apache, Bootstrap, Chart.js + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| bluestarindia.com |
| #80,717 |
| Cloudflare, DigiCert, DoubleClick (Google Ads) + 10 more |
| Find emails |
| nubox.com | #80,719 | ASP.NET, Amazon Route 53, Cloudflare Bot Management + 14 more | Find emails |
| diaart.org | #80,721 | AddThis, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| thelocal.dk | #80,724 | Adnami, Bluesky, DoubleClick (Google Ads) + 10 more | Find emails |
| openbanking.org.uk | #80,731 | Adyen, Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| cmcvellore.ac.in | #80,741 | ASP.NET, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| seveninternet.co.uk | #80,742 | Apache, DoubleClick (Google Ads), Font Awesome + 12 more | Find emails |
| drift.co | #80,758 | Attentive, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| berzerk.com.br | #80,762 | Cloudflare edge/CDN, Google Trust Services, Judge.me + 5 more | Find emails |
| myradioonline.ro | #80,777 | Apache, DoubleClick (Google Ads), Google Analytics + 4 more | Find emails |
| cencenelec.eu | #80,802 | AddThis, Bluesky, Bootstrap + 6 more | Find emails |
| innovist.com | #80,816 | AppsFlyer, Cloudflare edge/CDN, GoAffPro + 9 more | Find emails |
| poppornday.com | #80,817 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| lemondeducampingcar.fr | #80,827 | Bootstrap, Consent Framework, DoubleClick (Google Ads) + 16 more | Find emails |
| nationalbank.kz | #80,833 | Laravel, PHP | Find emails |
| fox.co.il | #80,866 | Cloudflare, Cloudflare edge/CDN, GoAffPro + 8 more | Find emails |
| thebarboursbeauty.com.br | #80,874 | Cloudflare, Cloudflare edge/CDN, Google Workspace + 7 more | Find emails |
| preetpret.pk | #80,879 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 4 more | Find emails |
| 4game.com | #80,880 | Google Analytics, Next.js, Nginx + 3 more | Find emails |
| banuri.edu.pk | #80,905 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| honda.com.co | #80,907 | Apache, Google Analytics, Google Fonts + 4 more | Find emails |
| photovoltaikforum.com | #80,909 | Google AdSense, Google Tag Manager, Let's Encrypt + 2 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 →