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 |
|---|---|---|---|
| japanesecartrade.com | #117,777 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| isitetv.com | #117,780 | Akamai Edge DNS, DigiCert, Microsoft Clarity + 3 more | Find emails |
| teefury.com | #117,781 | Attentive, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| eileenfisher.com | #117,786 | Akamai Bot Manager, Akamai edge/CDN, Bazaarvoice + 21 more | Find emails |
| afcea.org | #117,791 | Azure DNS, Bootstrap, Drupal + 8 more | Find emails |
| haxorware.com | #117,792 | Apache, Cloudflare, Google AdSense + 1 more | Find emails |
| arag.de | #117,811 | ConsentMo, Google Tag Manager, Microsoft 365 + 4 more | Find emails |
| tibus.net | #117,836 | Adobe Fonts (Typekit), Atlassian Statuspage, Cloudflare edge/CDN + 12 more | Find emails |
| thenewpress.com | #117,876 | Bluesky, Cloudflare edge/CDN, Google Fonts + 9 more | Find emails |
| motork.io | #117,882 | Cloudflare, Framer, Google Analytics + 6 more | Find emails |
| managers.org.uk | #117,889 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 9 more | Find emails |
| poetry.com | #117,901 | Amazon (ACM), Amazon Route 53, Apache + 5 more | Find emails |
| pledgeme.co.nz | #117,925 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 14 more | Find emails |
| modento.io | #117,928 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 25 more | Find emails |
| heatbit.com | #117,935 | Cloudflare edge/CDN, GoAffPro, Google Cloud DNS + 7 more | Find emails |
| adviad.com | #117,950 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 21 more | Find emails |
| tendanceouest.com | #117,952 | AT Internet, Apache, Consent Framework + 11 more | Find emails |
| zespri.com | #117,957 | AOS, Azure Front Door, DigiCert + 10 more | Find emails |
| americanstandard-us.com | #117,965 | Amazon Route 53, Cloudflare edge/CDN, Let's Encrypt + 4 more | Find emails |
| netweaver.uk | #117,975 | Apache, Font Awesome, Google Fonts + 5 more | Find emails |
| joblookup.com | #117,976 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| calida.com | #117,979 | AB Tasty, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| passion.com | #117,980 | Apache, Bootstrap, Fingerprint Pro + 8 more | Find emails |
| arla.com | #117,982 | Amazon CloudFront, Azure Front Door, DigiCert + 7 more | Find emails |
| centracare.com | #117,990 | ASP.NET, Adobe Fonts (Typekit), Akamai Bot Manager + 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →