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 |
|---|---|---|---|
| ellak.gr | #122,021 | Bootstrap, Cloudflare, DataTables + 9 more | Find emails |
| kaveh-art-studio.com | #122,037 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| adk-media.com | #122,051 | Ahrefs Analytics, Bootstrap, Fancybox + 10 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| cbi.org.uk | #122,054 | ASP.NET, Azure API Management, Azure Front Door + 14 more | Find emails |
| chillpainai.com | #122,060 | Bootstrap, DoubleClick (Google Ads), Font Awesome + 15 more | Find emails |
| kilomegabyte.com | #122,068 | ASP.NET, Bootstrap, Cloudflare Bot Management + 10 more | Find emails |
| hartstichting.nl | #122,073 | ASP.NET, Bootstrap, Cloudflare edge/CDN + 7 more | Find emails |
| speedway-world.pl | #122,078 | Apache, Cloudflare, Google Analytics + 3 more | Find emails |
| servytec.es | #122,139 | Apache, Bootstrap, DigiCert + 7 more | Find emails |
| megadeth.com | #122,150 | Cloudflare edge/CDN, Google Hosted Libraries, Klaviyo + 6 more | Find emails |
| techstartups.com | #122,151 | All in One SEO, Apache, Endurance International Group + 11 more | Find emails |
| salemnews.com | #122,171 | Blockthrough, Confiant, Empower Local + 12 more | Find emails |
| marineengine.com | #122,176 | Bootstrap, Cloudflare, Cloudflare Bot Management + 17 more | Find emails |
| rax.ru | #122,184 | AdRiver, Fancybox, Google AdSense + 7 more | Find emails |
| catrice.eu | #122,189 | Attentive, Bazaarvoice, Cloudflare edge/CDN + 9 more | Find emails |
| mail-signatures.com | #122,197 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 6 more | Find emails |
| poetryintranslation.com | #122,202 | Bluesky, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| totousa.com | #122,204 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| bikeboard.at | #122,233 | Apache, DigiCert, Font Awesome + 4 more | Find emails |
| ffrandonnee.fr | #122,234 | ASP.NET, Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| southaustralia.com | #122,246 | ASP.NET, Adobe Experience Cloud (Launch), Azure API Management + 12 more | Find emails |
| miracleon.ru | #122,317 | Bitrix, DDoS-Guard, Font Awesome + 8 more | Find emails |
| cda-adc.ca | #122,325 | ASP.NET, DigiCert, Font Awesome + 11 more | Find emails |
| notified.com | #122,342 | ASP.NET, Adobe Fonts (Typekit), Amazon Route 53 + 11 more | Find emails |
| derivative.ca | #122,345 | AddToAny, Amazon (ACM), Amazon Route 53 + 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 →