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 |
|---|---|---|---|
| joyclub.de | #1,528 | Amazon Route 53, AppsFlyer, Cloudflare Bot Management + 4 more | Find emails |
| indianrail.gov.in | #1,539 | Bootstrap, DoubleClick (Google Ads), Google Analytics + 2 more | Find emails |
| tokyomotion.net | #1,544 | Apache, Bootstrap, ExoClick + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| lioden.com | #1,561 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| desitales2.com | #1,600 | Cloudflare, Cloudflare edge/CDN, Disqus + 6 more | Find emails |
| hentai.name | #1,605 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| njavtv.com | #1,617 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 4 more | Find emails |
| bakusai.com | #1,647 | Font Awesome, Google AdSense, Google Analytics + 7 more | Find emails |
| w3schools.com | #1,660 | Amazon CloudFront, Amazon Route 53, Amazon S3 + 7 more | Find emails |
| xosodaiphat.com | #1,680 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| statuspage.io | #1,698 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| xoso.com.vn | #1,715 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 6 more | Find emails |
| livehindustan.com | #1,862 | Akamai Edge DNS, Akamai edge/CDN, Amazon Advertising + 12 more | Find emails |
| clickpetroleoegas.com.br | #1,868 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 10 more | Find emails |
| dnsimple.com | #1,879 | Ahrefs Analytics, Amazon CloudFront, Atlassian Cloud + 17 more | Find emails |
| romarg.com | #1,917 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 11 more | Find emails |
| techtarget.com | #1,991 | Chartbeat, Cloudflare edge/CDN, DoubleClick (Google Ads) + 6 more | Find emails |
| business.site | #1,993 | Google Analytics, Google Cloud DNS, Google Fonts + 3 more | Find emails |
| themeisle.com | #2,008 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 5 more | Find emails |
| beget.com | #2,022 | Google Tag Manager, Let's Encrypt, Mail.ru Analytics (Top100) + 4 more | Find emails |
| intentiq.com | #2,053 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 10 more | Find emails |
| amocrm.ru | #2,067 | DoubleClick (Google Ads), Google Ads Conversion, Google Analytics + 9 more | Find emails |
| like.video | #2,102 | Amazon Route 53, Kong, Nginx + 2 more | Find emails |
| mindbox.ru | #2,110 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 8 more | Find emails |
| waze.com | #2,126 | Google Cloud, Google Cloud DNS, Google Fonts + 3 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 →