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 |
|---|---|---|---|
| longbets.org | #82,204 | Amazon (ACM), Amazon Route 53, Django + 6 more | Find emails |
| mumbaiindians.com | #82,225 | BlueConic, Google Analytics, Google Fonts + 10 more | Find emails |
| vercel-status.com | #82,226 | Amazon CloudFront, Amazon Route 53, Atlassian Cloud + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| harion-ma.com | #82,248 | GoDaddy Website Builder | Find emails |
| dmifinance.in | #82,251 | AOS, Bootstrap, Fancybox + 11 more | Find emails |
| hokejportal.net | #82,252 | Apache, DoubleClick (Google Ads), Gemius + 7 more | Find emails |
| estudesemfronteiras.com | #82,255 | Amazon Route 53, Apache, Axios + 18 more | Find emails |
| bizprofile.net | #82,279 | ASP.NET, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| iglanc.cz | #82,280 | Cloudflare, Cloudflare edge/CDN, Didomi + 9 more | Find emails |
| echerha.gov.ua | #82,283 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 3 more | Find emails |
| farmacorp.com | #82,294 | Azure DNS, Bootstrap, Cloudflare edge/CDN + 10 more | Find emails |
| nuts.com | #82,296 | Akamai Edge DNS, Braze, Cloudflare edge/CDN + 9 more | Find emails |
| beautymarket.ma | #82,297 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 2 more | Find emails |
| scanverify.com | #82,314 | Blogger, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| 24028.jp | #82,338 | Font Awesome, Google Tag Manager, Nginx + 8 more | Find emails |
| stable.cz | #82,345 | Cookiebot, Google Fonts, HTMX + 6 more | Find emails |
| kuveytturk.com.tr | #82,348 | Adform, Bootstrap, Cloudflare + 6 more | Find emails |
| nas.gov.qa | #82,385 | Bootstrap, DigiCert, Dynatrace + 4 more | Find emails |
| survivetheark.com | #82,388 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| jet.de | #82,392 | Apache, Bootstrap, CSC (Digital Brand Services) + 10 more | Find emails |
| mypcorp.com | #82,393 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| annoncelight.dk | #82,415 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| hostilimitado.com | #82,417 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| ppt.cc | #82,433 | Cloudflare, Let's Encrypt, Meta Pixel + 2 more | Find emails |
| pngjewellers.com | #82,440 | Cloudflare edge/CDN, Google Trust Services, Microsoft Advertising (Bing UET) + 4 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 →