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 |
|---|---|---|---|
| boxofficeturkiye.com | #128,898 | ASP.NET, DoubleClick (Google Ads), Google AdSense + 11 more | Find emails |
| avalonbay.com | #128,920 | Adobe Fonts (Typekit), Akamai edge/CDN, Akamai mPulse + 22 more | Find emails |
| lvv2.com | #128,936 | Blogger, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| rhi.com | #128,949 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| facilitiesnet.com | #128,950 | ASP.NET, Bootstrap, DoubleClick (Google Ads) + 19 more | Find emails |
| kasika.io | #128,956 | Amazon Route 53, Bootstrap, Google Tag Manager + 5 more | Find emails |
| xoyondo.com | #128,960 | AddToAny, Bootstrap, Cloudflare + 14 more | Find emails |
| cbbank.com.mm | #128,995 | AddThis, Cloudflare, DigiCert + 6 more | Find emails |
| muntpunt.be | #129,000 | Bootstrap, ConsentMo, Drupal + 8 more | Find emails |
| tec35.com | #129,002 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 5 more | Find emails |
| cmc.com | #129,006 | ASP.NET, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| snapfish.it | #129,023 | Adobe Experience Cloud (Launch), Akamai edge/CDN, Akamai mPulse + 8 more | Find emails |
| gazette-drouot.com | #129,047 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| grimms.eu | #129,084 | Cloudflare edge/CDN, GoAffPro, Google Analytics + 5 more | Find emails |
| flicks.com.au | #129,092 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| adplist.org | #129,128 | Amazon (ACM), Amazon CloudFront, Cloudflare + 9 more | Find emails |
| wincor-nixdorf.com | #129,137 | Amazon CloudFront, DigiCert, DoubleClick (Google Ads) + 9 more | Find emails |
| roycerealestate.net | #129,163 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| jonimitchell.com | #129,168 | ASP.NET, Fancybox, Google Analytics + 9 more | Find emails |
| nej.cz | #129,178 | AOS, Apache, Google Ads Conversion + 8 more | Find emails |
| kosher.com | #129,189 | Bootstrap, Cloudflare, Cloudflare Bot Management + 18 more | Find emails |
| nic.ar | #129,191 | AddToAny, Bootstrap, Drupal + 13 more | Find emails |
| in-sist.net | #129,211 | Bootstrap, Chart.js, Font Awesome + 6 more | Find emails |
| salecore.com | #129,216 | ASP.NET, Bootstrap, Font Awesome + 13 more | Find emails |
| uma.pt | #129,241 | Apache, Axios, Font Awesome + 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 →