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 |
|---|---|---|---|
| planetart.com | #68,480 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| ppt.ru | #68,482 | Let's Encrypt, LiveInternet (Yadro), Mail.ru Analytics (Top100) + 6 more | Find emails |
| merkfunds.com | #68,486 | Apache, Cloudflare Turnstile, Sectigo + 1 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| everythingfor420.com | #68,507 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| lakeland.co.uk | #68,516 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 6 more | Find emails |
| blue.cl | #68,532 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| vegnews.com | #68,534 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| manappuram.com | #68,543 | AOS, Bootstrap, Cloudflare + 14 more | Find emails |
| clouddy.online | #68,558 | Bootstrap, Cloudflare, Cloudflare Turnstile + 6 more | Find emails |
| drtuber.desi | #68,571 | Cloudflare, Font Awesome, Google Analytics + 4 more | Find emails |
| constant.com | #68,591 | Ashby, Cloudflare Bot Management, Cloudflare Turnstile + 7 more | Find emails |
| swingtowns.com | #68,633 | Apache, Bootstrap, Fancybox + 13 more | Find emails |
| aquaray.com | #68,646 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| infinnity.ru | #68,648 | Bitrix, Let's Encrypt, Mail.ru Analytics (Top100) + 7 more | Find emails |
| prsa.org | #68,658 | ASP.NET, Amazon (ACM), Bootstrap + 16 more | Find emails |
| smart-soft.ru | #68,661 | AOS, Google Fonts, Let's Encrypt + 6 more | Find emails |
| intechonline.net | #68,673 | Bootstrap, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| aleado.ru | #68,731 | Let's Encrypt, Nginx, Telegram + 5 more | Find emails |
| meevo.com | #68,750 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 24 more | Find emails |
| bod.de | #68,755 | Apache, CookieFirst, Google Tag Manager + 8 more | Find emails |
| partnerboost.com | #68,757 | Alibaba Cloud DNS, DigiCert, Google Analytics + 11 more | Find emails |
| centraldispatch.com | #68,761 | AWS WAF, Amazon CloudFront, Amazon Route 53 + 19 more | Find emails |
| myjobmag.co.ke | #68,765 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| deliverr.com | #68,774 | Amazon (ACM), Amazon Route 53, Contentful + 3 more | Find emails |
| cocacoca.jp | #68,789 | A8.net, Adobe Fonts (Typekit), Cloudflare edge/CDN + 14 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 →