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.
| # | 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 |
|---|---|---|---|
| zavya.co | #99,863 | AddThis, Amplitude, Bootstrap + 15 more | Find emails |
| pocketnow.com | #99,902 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| ipe.com | #99,903 | Adobe Fonts (Typekit), Amazon (ACM), Amazon Route 53 + 9 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| winstonchurchill.org |
| #99,916 |
| AdRoll, Bootstrap, Cloudflare + 16 more |
| Find emails |
| bos-fahrzeuge.info | #99,922 | Google Analytics, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| themesinfo.com | #99,925 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| formilla.com | #99,926 | ASP.NET, Bootstrap, Cloudflare + 16 more | Find emails |
| networkcomputing.com | #99,930 | Chartbeat, Cloudflare edge/CDN, DoubleClick (Google Ads) + 6 more | Find emails |
| on1.com | #99,934 | Apache, Bootstrap, ClickTale (Contentsquare) + 15 more | Find emails |
| inventables.com | #99,974 | Amazon Route 53, Cloudflare edge/CDN, Font Awesome + 5 more | Find emails |
| rarevinyl.com | #99,976 | Cloudflare edge/CDN, ConsentMo, Google Analytics + 11 more | Find emails |
| fresnoforparks.com | #99,990 | Cloudflare, Cloudflare edge/CDN, Fancybox + 8 more | Find emails |
| pefc.org | #100,030 | Google Trust Services, Microsoft 365, Nginx + 1 more | Find emails |
| boredofstudies.org | #100,046 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| vendavalida.com.br | #100,084 | AOS, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| bohemiasoft.com | #100,095 | Bootstrap, Chart.js, Font Awesome + 10 more | Find emails |
| publir.com | #100,103 | AOS, All in One SEO, Bootstrap + 20 more | Find emails |
| coppermind.net | #100,113 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| acmepackingcompany.com | #100,126 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 14 more | Find emails |
| symbionetworks.com | #100,128 | AWS Lambda, Ahrefs Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| golden1.com | #100,146 | Adobe Experience Cloud (Launch), Akamai Edge DNS, Azure API Management + 10 more | Find emails |
| armstrongeconomics.com | #100,148 | Cloudflare, Fancybox, Google Fonts + 9 more | Find emails |
| diasoft.ru | #100,160 | Fancybox, Google Fonts, Google Maps + 8 more | Find emails |
| work-zilla.com | #100,164 | Cloudflare, Google Fonts, Next.js + 3 more | Find emails |
| galvnews.com | #100,170 | Blockthrough, DoubleClick (Google Ads), Font Awesome + 14 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 →