CAPTCHA & Bot Protection
30,403 of the 1,000,000 top sites in our Tranco top-1M census run hCaptcha (3%). A privacy-oriented reCAPTCHA alternative, common on sites that opted out of Google's widget. Detection is homepage-level HTML/header fingerprinting, so a site can run hCaptcha on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | hcaptcha.com | #314 (Tranco) | Find emails |
| 2 | cloudns.net | #426 (Tranco) | Find emails |
| 3 | stripchat.com | #723 (Tranco) | Find emails |
| 4 | wpguardian.com |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| outsetmedia.com | #44,881 | Cloudflare edge/CDN, Let's Encrypt, Microsoft 365 + 4 more | Find emails |
| macduggal.com | #44,889 | Adobe Fonts, Adobe Fonts (Typekit), Attentive + 11 more | Find emails |
| americangirl.com | #44,904 | Cloudflare edge/CDN, Contentstack, Klaviyo + 7 more | Find emails |
| #807 (Tranco) |
| Find emails |
| 5 | wpguardian.io | #814 (Tranco) | Find emails |
| partycity.com | #44,910 | Attentive, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| e.foundation | #44,915 | Font Awesome, Let's Encrypt, Nginx + 4 more | Find emails |
| casper.com | #45,022 | Affirm, Attentive, Cloudflare + 6 more | Find emails |
| wchat.mobi | #45,038 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| barion.com | #45,131 | ASP.NET, Builder.io, Cloudflare + 18 more | Find emails |
| u2.com | #45,226 | Amazon Route 53, Attentive, Cloudflare edge/CDN + 4 more | Find emails |
| goldencollections.net | #45,236 | Cloudflare edge/CDN, Google Cloud DNS, Google Fonts + 8 more | Find emails |
| wardow.com | #45,297 | Cloudflare edge/CDN, Let's Encrypt, Microsoft 365 + 6 more | Find emails |
| missouriquiltco.com | #45,364 | Cloudflare edge/CDN, Google Fonts, Let's Encrypt + 8 more | Find emails |
| macorner.co | #45,480 | Amazon Route 53, Cloudflare edge/CDN, Judge.me + 6 more | Find emails |
| home-appliances.philips | #45,513 | Bazaarvoice, Cloudflare edge/CDN, Let's Encrypt + 7 more | Find emails |
| ipvoid.com | #45,805 | Bootstrap, Fathom, Font Awesome + 5 more | Find emails |
| insanelymac.com | #45,844 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| npg.games | #45,965 | Bazaarvoice, Cloudflare edge/CDN, Fancybox + 13 more | Find emails |
| wmatch.net | #45,971 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| send.now | #46,169 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| drakensang.com | #46,187 | Amazon Route 53, Google Fonts, Google Tag Manager + 2 more | Find emails |
| advego.com | #46,553 | Bootstrap, Font Awesome, Google Tag Manager + 8 more | Find emails |
| ovationthemes.com | #46,568 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| podryad.tv | #46,598 | Google Tag Manager, Nginx, PHP + 5 more | Find emails |
| tartecosmetics.com | #46,642 | Amazon Route 53, Cloudflare edge/CDN, Let's Encrypt + 7 more | Find emails |
| eaa.org | #46,730 | ASP.NET, Cloudflare edge/CDN, Endurance International Group + 23 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 →