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 |
|---|---|---|---|
| love.hu | #91,789 | Cloudflare, Google AdSense, Google Analytics + 12 more | Find emails |
| digiseller.ru | #91,813 | ASP.NET, Google Analytics, Google Fonts + 7 more | Find emails |
| pfron.org.pl | #91,828 | Google Analytics, Google Tag Manager, Leaflet + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| friends2follow.com |
| #91,829 |
| Amazon (ACM), Amazon Route 53, Apache + 6 more |
| Find emails |
| digitalcommonwealth.org | #91,842 | Google Analytics, Google Tag Manager, Nginx + 3 more | Find emails |
| toribash.com | #91,849 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| choa.org | #91,851 | ASP.NET, Adobe Experience Cloud (Launch), Amazon CloudFront + 16 more | Find emails |
| vilogi.com | #91,872 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| micaresvc.com | #91,875 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| klbtheme.com | #91,892 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| uihc.org | #91,911 | Algolia, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| infodolar.com | #91,920 | ASP.NET, Bootstrap, Cloudflare + 18 more | Find emails |
| 24edu.ro | #91,965 | ASP.NET, Azure Front Door, Cloudflare + 16 more | Find emails |
| avimeeherbal.com | #91,973 | Cloudflare edge/CDN, GoKwik, Google Ads Conversion + 17 more | Find emails |
| keejob.com | #91,993 | Django, Font Awesome, Google Analytics + 12 more | Find emails |
| mysnep.com | #92,003 | Apache, Bootstrap, Cookiebot + 15 more | Find emails |
| tvet.gov.my | #92,019 | Bootstrap, Font Awesome, Google Fonts + 4 more | Find emails |
| avloniy.uz | #92,024 | AOS, Bootstrap, Fancybox + 9 more | Find emails |
| hathway-connect.com | #92,034 | ASP.NET, DigiCert, Font Awesome + 2 more | Find emails |
| mahatrafficechallan.gov.in | #92,039 | Amazon Route 53, Bootstrap, Font Awesome + 4 more | Find emails |
| ssptex.com | #92,048 | Cloudflare edge/CDN, Judge.me, Let's Encrypt + 4 more | Find emails |
| unisced.edu.mz | #92,052 | Apache, Font Awesome, Google Analytics + 13 more | Find emails |
| uncuyo.edu.ar | #92,065 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| pulte.com | #92,066 | ASP.NET, Adobe Experience Cloud (Launch), Azure API Management + 12 more | Find emails |
| lcmchealth.org | #92,067 | ASP.NET, Adobe Fonts (Typekit), Amazon CloudFront + 13 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 →