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 |
|---|---|---|---|
| masterdom.ru | #110,228 | Bitrix, Bootstrap, Fancybox + 10 more | Find emails |
| wazdan.com | #110,237 | ASP.NET, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| quiksilver.com | #110,261 | Cloudflare edge/CDN, Google Fonts, Google Tag Manager + 12 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| fractal-design.com | #110,266 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 11 more | Find emails |
| globalaffairs.ru | #110,273 | DDoS-Guard, Google Analytics, Google Tag Manager + 6 more | Find emails |
| insightadz.com | #110,296 | Bootstrap, DoubleClick (Google Ads), Font Awesome + 13 more | Find emails |
| fusebox.fm | #110,326 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| diffeyewear.com | #110,330 | Adobe Fonts (Typekit), Attentive, Cloudflare edge/CDN + 15 more | Find emails |
| audinate.com | #110,349 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 17 more | Find emails |
| luogu.com.cn | #110,354 | Cloudflare Web Analytics, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| esvacloud.com | #110,357 | Cloudflare, Cloudflare edge/CDN, GSAP + 12 more | Find emails |
| buildinggreen.com | #110,364 | Adobe Fonts (Typekit), AngularJS, Bootstrap + 13 more | Find emails |
| intellum.com | #110,370 | AWS Lambda, Adobe Fonts (Typekit), Amazon Route 53 + 9 more | Find emails |
| paireyewear.com | #110,379 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| flashghetto.com | #110,388 | Let's Encrypt, Namecheap, cdnjs + 1 more | Find emails |
| mserwis.pl | #110,389 | Apache, CookieYes, DigiCert + 10 more | Find emails |
| carriageservices.com | #110,398 | AOS, Adobe Fonts (Typekit), Cloudflare Bot Management + 20 more | Find emails |
| coinpayments.net | #110,401 | ASP.NET, Bootstrap, Cloudflare + 19 more | Find emails |
| sheplers.com | #110,414 | Amazon Route 53, Cloudflare edge/CDN, Fastly + 11 more | Find emails |
| nic.ua | #110,449 | Font Awesome, Google Tag Manager, Modernizr + 3 more | Find emails |
| gelisim.edu.tr | #110,472 | Ahrefs Analytics, Bootstrap, DigiCert + 7 more | Find emails |
| carolinas.org | #110,480 | ASP.NET, Azure API Management, Azure Front Door + 10 more | Find emails |
| collabornation.net | #110,481 | Amazon Route 53, Drupal, Google Analytics + 4 more | Find emails |
| passle.net | #110,509 | Amazon Route 53, Font Awesome, Let's Encrypt + 6 more | Find emails |
| indiegala.com | #110,519 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 16 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 →