CAPTCHA & Bot Protection
30,308 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 |
|---|---|---|---|
| feldhost.cz | #179,792 | Apache, Font Awesome, Google Tag Manager + 2 more | Find emails |
| twinkly.com | #179,797 | Cloudflare edge/CDN, ConsentMo, Cookiebot + 10 more | Find emails |
| hiyahealth.com | #179,905 | Attentive, Cloudflare edge/CDN, CookieYes + 13 more | Find emails |
| #807 (Tranco) |
| Find emails |
| 5 | wpguardian.io | #814 (Tranco) | Find emails |
| letseatit.com.br | #179,912 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 8 more | Find emails |
| tsubasa.im | #179,915 | Bootstrap, Cloudflare, Cloudflare Turnstile + 10 more | Find emails |
| arzopa.com | #179,991 | Cloudflare edge/CDN, Intelligems, Judge.me + 10 more | Find emails |
| tie-house.com | #180,069 | Cloudflare edge/CDN, Google Fonts, Judge.me + 4 more | Find emails |
| anydesk.com.cn | #180,114 | Cloudflare Bot Management, Cloudflare edge/CDN, Let's Encrypt + 1 more | Find emails |
| openletterbooks.org | #180,288 | Cloudflare edge/CDN, Fancybox, Google Fonts + 7 more | Find emails |
| snuzone.com | #180,394 | Bootstrap, ClickTale (Contentsquare), Cloudflare edge/CDN + 15 more | Find emails |
| youknowwhos.co.uk | #180,404 | Afterpay, Attentive, Bugsnag + 10 more | Find emails |
| tyr.com | #180,547 | Adobe Fonts (Typekit), ClickTale (Contentsquare), Cloudflare + 8 more | Find emails |
| watts-online.jp | #180,634 | Cloudflare edge/CDN, Google Fonts, Google Hosted Libraries + 10 more | Find emails |
| dragonshield.com | #180,669 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare + 9 more | Find emails |
| balardi.com | #180,716 | Cloudflare edge/CDN, Google Cloud DNS, Instant.page + 8 more | Find emails |
| the-are.com | #180,748 | AdRoll, Cloudflare edge/CDN, Global-e + 8 more | Find emails |
| vozer.net | #180,757 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| xlibris.com | #180,774 | ASP.NET, AddThis, Bootstrap + 15 more | Find emails |
| hranidengi.com | #180,778 | DDoS-Guard, Google Analytics, Google Fonts + 5 more | Find emails |
| merchnow.com | #180,785 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| wellversed.in | #180,851 | Bootstrap, Cloudflare edge/CDN, GoKwik + 13 more | Find emails |
| paintscratch.com | #180,858 | ChatGPT Ads Pixel, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| medisave.co.uk | #180,914 | Cloudflare edge/CDN, Let's Encrypt, Sentry + 4 more | Find emails |
| lilabeauty.com.au | #180,924 | Bootstrap, Cloudflare edge/CDN, Let's Encrypt + 9 more | Find emails |
| naturespath.com | #181,000 | Ahrefs Analytics, Cloudflare edge/CDN, ConsentMo + 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →