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 |
|---|---|---|---|
| ncsbn.org | #61,327 | Azure API Management, Azure DNS, Google Analytics + 14 more | Find emails |
| pearljam.com | #61,330 | Amazon (ACM), Apache, Bluesky + 13 more | Find emails |
| maghost.ro | #61,331 | Adobe Fonts, Adobe Fonts (Typekit), Bootstrap + 26 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| lawyer.com |
| #61,333 |
| Cloudflare Bot Management, Cloudflare Turnstile, Cloudflare edge/CDN + 6 more |
| Find emails |
| clearvoice.com | #61,335 | Amazon Route 53, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| motimateapp.com | #61,354 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| classi.jp | #61,377 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 16 more | Find emails |
| wiza.co | #61,399 | AWS Lambda, Calendly, Cloudflare + 16 more | Find emails |
| dunetechnology.com | #61,400 | Font Awesome, Microsoft 365, Nginx + 6 more | Find emails |
| readtheory.org | #61,407 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 16 more | Find emails |
| iphotel.com.br | #61,411 | AOS, Google Analytics, Google Fonts + 9 more | Find emails |
| hostingkartinok.com | #61,418 | Fancybox, Google Fonts, Google Hosted Libraries + 13 more | Find emails |
| examtopics.com | #61,423 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 21 more | Find emails |
| renaissancekingdoms.com | #61,429 | Bootstrap, GSAP, Google Fonts + 9 more | Find emails |
| easydns.org | #61,431 | AddToAny, Adobe Fonts (Typekit), Apache + 9 more | Find emails |
| nuvid.club | #61,454 | Cloudflare, Font Awesome, Google Analytics + 4 more | Find emails |
| newsguardtech.com | #61,462 | Adobe Fonts (Typekit), Bluesky, Cloudflare edge/CDN + 15 more | Find emails |
| elektramat.nl | #61,472 | Cloudflare, Cloudflare edge/CDN, Convert + 4 more | Find emails |
| patriotsoftware.com | #61,475 | ASP.NET, Amazon CloudFront, Amazon S3 + 17 more | Find emails |
| olight.com | #61,479 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| revibe.me | #61,486 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 8 more | Find emails |
| supremacy1914.com | #61,501 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 5 more | Find emails |
| sftcomp.ru | #61,537 | Django, Let's Encrypt, Nginx + 1 more | Find emails |
| ems-pay.com | #61,551 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| insiderstore.com.br | #61,558 | Cloudflare, Cloudflare edge/CDN, Datadog + 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 →