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 |
|---|---|---|---|
| pokemoncenter-online.com | #20,668 | Amazon Route 53, Cloudflare Web Analytics, Cloudflare edge/CDN + 13 more | Find emails |
| werite.net | #20,669 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 2 more | Find emails |
| enel.com.br | #20,670 | Adobe Experience Cloud (Launch), Apache, Dynatrace + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| home24.de | #20,686 | Akamai Edge DNS, Constructor.io, Google Tag Manager + 5 more | Find emails |
| newsweek.ro | #20,694 | Cloudflare, Google Analytics, Google Fonts + 7 more | Find emails |
| numista.com | #20,695 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 8 more | Find emails |
| mirohost.net | #20,721 | Google Analytics, Google Fonts, Google Tag Manager + 5 more | Find emails |
| jbzd.com.pl | #20,731 | Cloudflare, Google Tag Manager, InMobi + 7 more | Find emails |
| yoti.com | #20,740 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 16 more | Find emails |
| animesuge.cz | #20,749 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| socpublic.com | #20,756 | Bootstrap, Cloudflare, Fancybox + 7 more | Find emails |
| goope.jp | #20,766 | DoubleClick (Google Ads), Font Awesome, Google Analytics + 8 more | Find emails |
| nbe.com.eg | #20,771 | DigiCert, Google Analytics, Google Fonts + 8 more | Find emails |
| liiivideo.com | #20,779 | Bootstrap, Cloudflare, Google Fonts + 5 more | Find emails |
| digi.ro | #20,787 | ConsentMo, Google Tag Manager, reCAPTCHA v2 | Find emails |
| lsm.lv | #20,790 | Chartbeat, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| nexigen.digital | #20,792 | Google Fonts, Google Maps, Google Tag Manager + 8 more | Find emails |
| kaotic.com | #20,797 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| yapo.cl | #20,798 | AdRoll, Cloudflare, Cloudflare edge/CDN + 19 more | Find emails |
| glitchproductions.store | #20,801 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 3 more | Find emails |
| trane.com | #20,809 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), Amazon CloudFront + 6 more | Find emails |
| 3dn.ru | #20,818 | Bootstrap, CleanTalk, Font Awesome + 8 more | Find emails |
| baby-calendar.jp | #20,848 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| 021.rs | #20,860 | Bootstrap, DigiCert, DoubleClick (Google Ads) + 8 more | Find emails |
| lockly.com | #20,885 | AOS, Bazaarvoice, Cloudflare edge/CDN + 12 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 →