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 |
|---|---|---|---|
| nettigritty.com | #40,372 | Apache, Bootstrap, DoubleClick (Google Ads) + 12 more | Find emails |
| dailyverses.net | #40,386 | ASP.NET, Google Analytics, Google Tag Manager + 4 more | Find emails |
| hrmos.co | #40,391 | All in One SEO, Amazon (ACM), Amazon CloudFront + 16 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| assemblyai.com | #40,415 | Amazon CloudFront, Amazon Route 53, Atlassian Statuspage + 13 more | Find emails |
| radiocut.fm | #40,418 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| enhancv.com | #40,420 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| superpal.com | #40,434 | Adobe Audience Manager, Amazon Advertising, Arkose Labs + 28 more | Find emails |
| asmhentai.com | #40,442 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| petlibro.com | #40,456 | Cloudflare edge/CDN, Let's Encrypt, Microsoft Advertising (Bing UET) + 7 more | Find emails |
| araujo.com.br | #40,464 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 20 more | Find emails |
| justeattakeaway.com | #40,478 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| ops.co | #40,483 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| edupoint.com | #40,492 | AOS, ASP.NET, Amazon (ACM) + 10 more | Find emails |
| rocketmoney.com | #40,542 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| hautetfort.com | #40,543 | Apache, Cloudflare, Google Analytics + 5 more | Find emails |
| vikingcloud.com | #40,546 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| tupalo.com | #40,560 | Amazon Route 53, Google Analytics, HTMX + 3 more | Find emails |
| boxlunch.com | #40,566 | Bloomreach, Cloudflare edge/CDN, DigiCert + 4 more | Find emails |
| newsfilecorp.com | #40,572 | ASP.NET, Amazon (ACM), Bootstrap + 8 more | Find emails |
| francophonie.org | #40,606 | Drupal, Google Analytics, Google Hosted Libraries + 8 more | Find emails |
| alldebrid.com | #40,610 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 5 more | Find emails |
| soccer.ru | #40,626 | Let's Encrypt, Nginx, Yandex CDN + 1 more | Find emails |
| sharp.com | #40,629 | Amazon (ACM), Amazon CloudFront, Contentful + 5 more | Find emails |
| manufrog.com | #40,633 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| siap-online.com | #40,637 | Bootstrap, Font Awesome, Google AdSense + 10 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 →