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 |
|---|---|---|---|
| edrone.me | #30,470 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| ajol.info | #30,478 | Amazon (ACM), Amazon Route 53, Apache + 14 more | Find emails |
| theorg.com | #30,529 | Amazon Route 53, Cookiebot, Google Analytics + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| blacknightdns.com |
| #30,553 |
| Apache, Font Awesome, Google Analytics + 2 more |
| Find emails |
| legit.ng | #30,562 | Amazon (ACM), Amazon CloudFront, Cloudflare + 5 more | Find emails |
| twoplustwo.com | #30,576 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| mpsmonitor.com | #30,631 | Google Fonts, Google Tag Manager, Let's Encrypt + 10 more | Find emails |
| ofd-ya.ru | #30,642 | Bootstrap, Font Awesome, Google Analytics + 7 more | Find emails |
| tankionline.com | #30,680 | Amazon Route 53, Braintree, DoubleClick (Google Ads) + 18 more | Find emails |
| chicagoreader.com | #30,694 | Broadstreet, DoubleClick (Google Ads), Google Publisher Tag + 9 more | Find emails |
| newpages.com.my | #30,713 | AOS, AddThis, Alibaba Cloud CDN + 16 more | Find emails |
| pravmir.ru | #30,724 | CloudPayments, LiveInternet (Yadro), Mail.ru Analytics (Top100) + 5 more | Find emails |
| crackerbarrel.com | #30,752 | Adyen, Amazon Route 53, AppNexus + 25 more | Find emails |
| aplaceformom.com | #30,808 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 5 more | Find emails |
| mediacomcable.com | #30,810 | BrightEdge, DigiCert, Drupal + 9 more | Find emails |
| justpaste.me | #30,818 | Apache, Bootstrap, Google AdSense + 6 more | Find emails |
| stellar.org | #30,854 | Cloudflare, Cloudflare edge/CDN, Next.js + 5 more | Find emails |
| 100sp.ru | #30,861 | Meta Pixel, Nginx, PHP + 5 more | Find emails |
| 3dcart.com | #30,883 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| sidelineswap.com | #30,917 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Turnstile + 14 more | Find emails |
| edubirdie.com | #30,923 | Cloudflare, Cloudflare edge/CDN, DMCA.com Protection + 8 more | Find emails |
| expert.de | #30,927 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 3 more | Find emails |
| miele.com | #30,936 | Akamai Edge DNS, DigiCert, Google Tag Manager + 2 more | Find emails |
| ascon.ru | #30,953 | Bootstrap, Fancybox, Font Awesome + 16 more | Find emails |
| everlane.com | #31,027 | Attentive, Bugsnag, Builder.io + 9 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 →