CAPTCHA & Bot Protection
90,376 of the 1,000,000 top sites in our Tranco top-1M census run reCAPTCHA (9%). 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.
| # | 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 |
|---|---|---|---|
| lyreco.com | #37,552 | Akamai Bot Manager, Akamai edge/CDN, CSC (Digital Brand Services) + 6 more | Find emails |
| mlbtraderumors.com | #37,575 | Let's Encrypt, Microsoft 365, Nginx + 4 more | Find emails |
| justclick.ru | #37,584 | Cloudflare, Google Analytics, Google Fonts + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| whereby.com | #37,589 | Amazon (ACM), Amazon Route 53, Framer + 2 more | Find emails |
| rcuniverse.com | #37,590 | Amazon Advertising, Cloudflare, Cloudflare Web Analytics + 14 more | Find emails |
| discordstatus.com | #37,602 | Amazon CloudFront, Let's Encrypt, Namecheap + 4 more | Find emails |
| allkeyshop.com | #37,611 | Apache, Google Analytics, Google Tag Manager + 3 more | Find emails |
| aleado.com | #37,620 | OpenResty, jQuery, jQuery UI + 3 more | Find emails |
| ifaw.org | #37,628 | CSC (Digital Brand Services), Cloudflare edge/CDN, Express + 2 more | Find emails |
| myabandonware.com | #37,658 | Bluesky, Google Analytics, Google Tag Manager + 7 more | Find emails |
| spiel-mit-hoher-gewinnchance.com | #37,701 | ASP.NET, Adobe Fonts (Typekit), Cloudflare edge/CDN + 10 more | Find emails |
| theblast.com | #37,702 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 5 more | Find emails |
| realtyww.info | #37,705 | Cloudflare, Cloudflare edge/CDN, Fancybox + 14 more | Find emails |
| twibbonize.com | #37,715 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 7 more | Find emails |
| global-x.ru | #37,717 | Bootstrap, Font Awesome, Let's Encrypt + 5 more | Find emails |
| pentair.com | #37,725 | Adobe Analytics, Adobe Experience Cloud (Launch), Adobe Experience Manager Edge Delivery (Helix RUM) + 19 more | Find emails |
| leica-geosystems.com | #37,737 | ASP.NET, Adyen, Amazon Route 53 + 24 more | Find emails |
| tapsi.ir | #37,745 | Bootstrap, Express, Google Analytics + 10 more | Find emails |
| recruitics.com | #37,759 | 6sense, AOS, AdRoll + 15 more | Find emails |
| adsmovil.com | #37,780 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 5 more | Find emails |
| iac.es | #37,786 | Apache, Bluesky, Cookiebot + 6 more | Find emails |
| sproutvideo.com | #37,813 | Adobe Fonts, Adobe Fonts (Typekit), Amazon (ACM) + 22 more | Find emails |
| multitran.com | #37,839 | Cloudflare, Google AdSense, Google Analytics + 4 more | Find emails |
| windsorstore.com | #37,856 | Certona (Monetate), Cloudflare edge/CDN, Cloudinary + 14 more | Find emails |
| elpais.com.co | #37,879 | Akamai edge/CDN, Akamai mPulse, Amazon Route 53 + 20 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →