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 |
|---|---|---|---|
| eaa.org | #46,730 | ASP.NET, Cloudflare edge/CDN, Endurance International Group + 23 more | Find emails |
| stockinvest.us | #46,740 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| t-2.net | #46,788 | Adform, Adobe Fonts (Typekit), Apache + 15 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| als.org | #46,796 | AOS, Adobe Fonts (Typekit), Cloudflare + 17 more | Find emails |
| trib.com | #46,803 | 33Across, Advertising.com, Amazon Advertising + 44 more | Find emails |
| wafflegame.net | #46,813 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| eurogamer.de | #46,824 | Amazon Advertising, Chartbeat, Confiant + 8 more | Find emails |
| baehost.com | #46,893 | Apache, Font Awesome, Google Ads Conversion + 3 more | Find emails |
| webvirt.cloud | #46,912 | Cloudflare, GoDaddy Website Builder | Find emails |
| verticalresponse.com | #46,944 | Bootstrap, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| v2ph.com | #46,947 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 4 more | Find emails |
| naiz.eus | #46,953 | Didomi, Google Analytics, Google Tag Manager + 7 more | Find emails |
| pdfescape.com | #46,980 | ASP.NET, Amazon Route 53, Cloudflare Bot Management + 9 more | Find emails |
| all-free-download.com | #46,987 | Bootstrap, Google Analytics, Google Tag Manager + 7 more | Find emails |
| crosswinds.net | #47,009 | Apache, Bootstrap, Font Awesome + 7 more | Find emails |
| kvinneguiden.no | #47,010 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| score-media.de | #47,028 | Apache, CookieYes, Font Awesome + 14 more | Find emails |
| hantamo.com | #47,038 | Astro, Bootstrap, ChatGPT Ads Pixel + 11 more | Find emails |
| ocps.net | #47,039 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 23 more | Find emails |
| adpost4u.com | #47,041 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 16 more | Find emails |
| belkacar.ru | #47,081 | Google Tag Manager, Laravel, Nginx + 2 more | Find emails |
| wbshop.com | #47,092 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare edge/CDN + 7 more | Find emails |
| strtech.org | #47,098 | Apache, Django, Google Analytics + 8 more | Find emails |
| tablethotels.com | #47,114 | Amazon (ACM), Amazon Route 53, Didomi + 6 more | Find emails |
| laisvas.lt | #47,131 | Bootstrap, Chart.js, Google Analytics + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →