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 |
|---|---|---|---|
| betflag.it | #8,675 | ASP.NET, Akamai Bot Manager, Akamai Edge DNS + 12 more | Find emails |
| rawstory.com | #8,686 | Cloudflare, Fastly, Google Fonts + 4 more | Find emails |
| drikpanchang.com | #8,689 | Google AdSense, Google Analytics, Google Cloud DNS + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| trassir.com | #8,701 | Bitrix, Font Awesome, Google Analytics + 11 more | Find emails |
| prehrajto.cz | #8,702 | Cloudflare, Google Tag Manager, Nginx + 2 more | Find emails |
| matrix.org | #8,706 | Amazon CloudFront, Astro, Atlassian Cloud + 10 more | Find emails |
| daisonet.com | #8,716 | Amazon Route 53, Cloudflare edge/CDN, Google Hosted Libraries + 10 more | Find emails |
| parfois.com | #8,721 | Braze, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| newsbomb.gr | #8,726 | DigiCert, Joomla, Microsoft 365 + 1 more | Find emails |
| gemidos.tv | #8,749 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 2 more | Find emails |
| puntoticket.com | #8,775 | Axios, Azure API Management, Azure DNS + 16 more | Find emails |
| truist.com | #8,794 | Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM), Akamai Edge DNS + 12 more | Find emails |
| ably.net | #8,808 | Amazon Route 53, Cloudflare edge/CDN, Gatsby + 11 more | Find emails |
| distintas.net | #8,810 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 2 more | Find emails |
| transmit.live | #8,826 | AWS Lambda, Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| rst.ua | #8,853 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| linksys.com | #8,888 | AOS, Cloudflare, Cloudflare Bot Management + 10 more | Find emails |
| tube8.fr | #8,898 | Amazon Route 53, DoubleClick (Google Ads), Google Analytics + 4 more | Find emails |
| trafficnews.jp | #8,903 | Adingo, Amazon CloudFront, Cloudflare + 21 more | Find emails |
| ncore.pro | #8,925 | Blogger, Cloudflare, Sectigo + 1 more | Find emails |
| languagetoolplus.com | #8,929 | Amplitude, Apple Pay, Awin + 18 more | Find emails |
| optidigital.com | #8,931 | Apache, Cloudflare Bot Management, Cloudflare edge/CDN + 14 more | Find emails |
| hentaimama.io | #8,938 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 5 more | Find emails |
| zbporn.tv | #8,945 | Cloudflare, ExoClick, Google Analytics + 4 more | Find emails |
| happymail.co.jp | #8,976 | Criteo, DigiCert, Google Ads Conversion + 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-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →