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 |
|---|---|---|---|
| asiangroceronline.com.au | #35,397 | AddThis, ChatGPT Ads Pixel, Cloudflare + 9 more | Find emails |
| uralweb.ru | #35,560 | Google Analytics, Google Fonts, Let's Encrypt + 6 more | Find emails |
| hosting-mexico.net | #35,680 | AdRoll, Atlassian Cloud, Atlassian Statuspage + 16 more | Find emails |
| #807 (Tranco) |
| Find emails |
| 5 | wpguardian.io | #814 (Tranco) | Find emails |
| sott.net | #35,775 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 4 more | Find emails |
| dickies.com | #36,285 | Cloudflare edge/CDN, Let's Encrypt, Noibu + 5 more | Find emails |
| catholique.fr | #36,447 | Font Awesome, Google Tag Manager, Mailjet + 8 more | Find emails |
| claritas.com | #36,500 | AddToAny, Apache, Bootstrap + 13 more | Find emails |
| flyingtiger.com | #36,602 | AdRoll, CSC (Digital Brand Services), Cloudflare edge/CDN + 20 more | Find emails |
| wfmu.org | #36,776 | Bluesky, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| bny.com | #36,995 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 13 more | Find emails |
| anet.net.th | #37,253 | Apache, Axios, Bootstrap + 12 more | Find emails |
| burton.com | #37,354 | Bugsnag, Cloudflare edge/CDN, Google Tag Manager + 8 more | Find emails |
| laurageller.com | #37,438 | Cloudflare, Cloudflare edge/CDN, Global-e + 6 more | Find emails |
| sleepdoctor.com | #37,462 | Cloudflare, Cloudflare edge/CDN, DebugBear + 12 more | Find emails |
| windsorstore.com | #37,856 | Certona (Monetate), Cloudflare edge/CDN, Cloudinary + 14 more | Find emails |
| wicourts.gov | #37,864 | Bootstrap, DigiCert, Font Awesome + 6 more | Find emails |
| ip-connect.info | #37,972 | Fancybox, Google Analytics, Let's Encrypt + 5 more | Find emails |
| nutritionfacts.org | #38,197 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| vsenet.net | #38,356 | Font Awesome, Google Hosted Libraries, Google Tag Manager + 13 more | Find emails |
| transtore.app | #38,426 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 7 more | Find emails |
| alienwarearena.com | #38,551 | Amazon Route 53, Bootstrap, Fastly + 11 more | Find emails |
| farmandfleet.com | #38,569 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| hostever.com | #39,105 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| altn.com | #39,185 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 8 more | Find emails |
| yarnspirations.com | #39,288 | Amazon Route 53, Bazaarvoice, Cloudflare edge/CDN + 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 →