CAPTCHA & Bot Protection
56,649 of the 965,200 top sites in our Tranco top-1M census run reCAPTCHA (5.9%). 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 | one.one | #160 (Tranco) | Find emails |
| 2 | pki.goog | #218 (Tranco) | Find emails |
| 3 | t-online.de | #220 (Tranco) | Find emails |
| 4 | dnsmadeeasy.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| bidtheatre.com | #6,140 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 6 more | Find emails |
| ledauphine.com | #6,155 | ConsentMo, DigiCert, Google Tag Manager + 1 more | Find emails |
| academy.com | #6,187 | Adobe Fonts (Typekit), Clarip, Contentstack + 4 more | Find emails |
| #291 (Tranco) |
| Find emails |
| 5 | duckdns.org | #295 (Tranco) | Find emails |
| homedepot.ca | #6,218 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 7 more | Find emails |
| thenationalnews.com | #6,260 | Let's Encrypt, Microsoft 365, OpenResty + 2 more | Find emails |
| funnyjunk.com | #6,288 | Cloudflare, Let's Encrypt, Nginx | Find emails |
| leprogres.fr | #6,330 | ConsentMo, DigiCert, Google Tag Manager + 1 more | Find emails |
| ghanaweb.com | #6,384 | Akamai Edge DNS, Akamai mPulse, Google AdSense + 8 more | Find emails |
| webnode.com | #6,392 | Amazon Route 53, Convert, Envoy + 5 more | Find emails |
| anota.ai | #6,426 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| flexport.com | #6,444 | Amazon (ACM), Amazon Route 53, Contentful + 3 more | Find emails |
| like-video.com | #6,453 | Amazon Route 53, Kong, Nginx + 1 more | Find emails |
| wyze.com | #6,467 | Bazaarvoice, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| sex.com | #6,474 | Amazon (ACM), Amazon Route 53, Google Tag Manager + 6 more | Find emails |
| tate.org.uk | #6,486 | AB Tasty, Fastly, Google Tag Manager + 5 more | Find emails |
| bambuser.com | #6,513 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| d-zone.ca | #6,521 | Cloudflare edge/CDN, Google Analytics, Google Tag Manager + 4 more | Find emails |
| brightside.me | #6,524 | Amazon Advertising, Amazon Route 53, Google Analytics + 6 more | Find emails |
| freeconvert.com | #6,548 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| infor.pl | #6,553 | Google Publisher Tag, Google Tag Manager, reCAPTCHA v2 | Find emails |
| military.com | #6,566 | Amazon Route 53, Google Analytics, Google Tag Manager + 6 more | Find emails |
| getpublica.com | #6,603 | Amazon Route 53, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| amtrak.com | #6,615 | Adobe Experience Cloud (Launch), Akamai Bot Manager, Akamai Edge DNS + 6 more | Find emails |
| login.gov | #6,620 | Amazon CloudFront, Amazon Route 53, Google Analytics + 3 more | Find emails |
| arvixe.com | #6,682 | Adobe Experience Cloud (Launch), Cloudflare, Cloudflare Bot Management + 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →