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 |
|---|---|---|---|
| careers24.com | #61,587 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 12 more | Find emails |
| autogari.ro | #61,595 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| reservo.cl | #61,607 | Google Cloud DNS, Nginx, Sectigo + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| purpleport.com | #61,609 | Bluesky, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| datingsmatch.com | #61,617 | Cloudflare, Cloudflare edge/CDN, Fingerprint Pro + 7 more | Find emails |
| rttnews.com | #61,622 | ASP.NET, Amazon Route 53, Bootstrap + 13 more | Find emails |
| traveloregon.com | #61,646 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 19 more | Find emails |
| fomo.com | #61,660 | AWS Lambda, Cloudflare, Cloudflare Web Analytics + 19 more | Find emails |
| lear.com | #61,693 | AWS Lambda, Adobe Fonts (Typekit), Akamai Edge DNS + 13 more | Find emails |
| ollies.com | #61,701 | Cloudflare edge/CDN, ConsentMo, Fancybox + 6 more | Find emails |
| petel.bg | #61,705 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| diablo2.io | #61,716 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| thefiscaltimes.com | #61,744 | Amazon (ACM), Amazon Route 53, ConsentMo + 14 more | Find emails |
| mellerbrand.com | #61,752 | Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 8 more | Find emails |
| allclassic.porn | #61,823 | Cloudflare, ExoClick, Fancybox + 5 more | Find emails |
| a12.com | #61,839 | Adopt, Amazon Route 53, Font Awesome + 10 more | Find emails |
| identifix.com | #61,844 | ASP.NET, AddToAny, Adobe Fonts (Typekit) + 19 more | Find emails |
| host.io | #61,854 | Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 7 more | Find emails |
| ethoslife.com | #61,858 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| cartrade.com | #61,895 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| showmelocal.com | #61,897 | ASP.NET, Amazon Route 53, Clicky + 6 more | Find emails |
| rainfocus.com | #61,899 | Adyen, Amazon (ACM), Amazon CloudFront + 25 more | Find emails |
| goosecreek.com | #61,903 | Cloudflare, Cloudflare edge/CDN, Gladly + 10 more | Find emails |
| docdro.id | #61,928 | Laravel, Let's Encrypt, reCAPTCHA v2 | Find emails |
| 85po.com | #61,930 | Cloudflare, Cloudflare edge/CDN, ExoClick + 8 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 →