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 |
|---|---|---|---|
| hcaptcha.com | #314 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 5 more | Find emails |
| cloudns.net | #426 | Google Analytics, Google Tag Manager, Nginx + 2 more | Find emails |
| stripchat.com | #723 | Amplitude, Cloudflare, Cloudflare Bot Management + 8 more | Find emails |
| #807 (Tranco) |
| Find emails |
| 5 | wpguardian.io | #814 (Tranco) | Find emails |
| wpguardian.com | #807 | Amplitude, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| wpguardian.io | #814 | Amplitude, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| wyzecam.com | #918 | Bazaarvoice, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| aternos.org | #1,324 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| wpastra.com | #1,462 | AB Tasty, ActiveCampaign, AdRoll + 119 more | Find emails |
| evernote.com | #2,060 | Fastly, Google Cloud DNS, Google Trust Services + 3 more | Find emails |
| shorturl.at | #2,285 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 2 more | Find emails |
| wikisource.org | #2,756 | Let's Encrypt, MediaWiki | Find emails |
| pypi.org | #2,817 | Amazon Route 53, Amazon S3, Atlassian Statuspage + 8 more | Find emails |
| webgo.de | #3,224 | Font Awesome, Livewire, Microsoft 365 + 6 more | Find emails |
| mediawiki.org | #3,233 | Let's Encrypt, MediaWiki | Find emails |
| wikidot.com | #3,373 | Amazon Route 53, Bootstrap, DoubleClick (Google Ads) + 4 more | Find emails |
| directnic.com | #3,436 | Bootstrap, DoubleClick (Google Ads), Font Awesome + 11 more | Find emails |
| appnext.com | #4,046 | ASP.NET, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| banahosting.com | #4,076 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 3 more | Find emails |
| buffer.com | #4,265 | Cloudflare, Cloudflare edge/CDN, CookieYes + 9 more | Find emails |
| tcgplayer.com | #4,432 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| jbhifi.com.au | #4,873 | Amazon Route 53, Cloudflare edge/CDN, Contentful + 12 more | Find emails |
| gaijinent.com | #4,902 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| trueconf.com | #5,107 | Cloudflare Turnstile, Google Fonts, Google Tag Manager + 9 more | Find emails |
| neocities.org | #5,119 | Bluesky, Bootstrap, Let's Encrypt + 3 more | Find emails |
| ninisite.com | #5,241 | ASP.NET, Google Tag Manager, Microsoft Clarity | 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 →