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 |
|---|---|---|---|
| derimod.com.tr | #76,372 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 7 more | Find emails |
| sharperimage.com | #76,375 | Amazon Route 53, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| bsale.cl | #76,395 | Amazon (ACM), Amazon Route 53, Bootstrap + 15 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| mdspa.it | #76,397 | Amazon Route 53, Font Awesome, Microsoft 365 + 4 more | Find emails |
| codelinaro.org | #76,407 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| maplin.co.uk | #76,411 | Adobe Fonts (Typekit), Bugsnag, Cloudflare + 10 more | Find emails |
| penguin-uk.net | #76,422 | Apache, DMCA.com Protection, Fancybox + 9 more | Find emails |
| senckenberg.de | #76,424 | Apache, ConsentMo, WordPress + 1 more | Find emails |
| aysima.com | #76,430 | DigiCert, Font Awesome, Google Analytics + 7 more | Find emails |
| fsonline.app | #76,438 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| yatradham.org | #76,468 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| chasevalue.pk | #76,470 | Cloudflare edge/CDN, Google Fonts, Let's Encrypt + 3 more | Find emails |
| myfone.com.tw | #76,479 | AddToAny, Axios, Bootstrap + 17 more | Find emails |
| yobit.net | #76,489 | DDoS-Guard, Let's Encrypt, PHP + 3 more | Find emails |
| unir.br | #76,493 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| rrauction.com | #76,498 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| collabo-cafe.com | #76,511 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| patronite.pl | #76,525 | Amazon (ACM), Cloudflare, ConsentMo + 9 more | Find emails |
| rticontrol.com | #76,527 | Adobe Fonts (Typekit), Amazon Route 53, Cloudflare edge/CDN + 9 more | Find emails |
| miningweekly.com | #76,529 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| sonalika.com | #76,545 | AOS, ASP.NET, Bootstrap + 21 more | Find emails |
| unisalute.it | #76,547 | Astro, DigiCert, Dynatrace + 2 more | Find emails |
| angrylane.com | #76,555 | Cloudflare edge/CDN, Google Fonts, Google Hosted Libraries + 7 more | Find emails |
| aurafragrance.com | #76,564 | Cloudflare edge/CDN, DoubleClick (Google Ads), Google Cloud DNS + 10 more | Find emails |
| sportsnaut.com | #76,589 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 7 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 →