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 |
|---|---|---|---|
| rasa-ayurveda.com | #129,252 | Cloudflare edge/CDN, GoAffPro, Google Hosted Libraries + 9 more | Find emails |
| sneakinpeace.com | #129,265 | Cloudflare edge/CDN, Google Analytics, Google Fonts + 11 more | Find emails |
| 7forallmankind.com | #129,269 | Attentive, Cloudflare edge/CDN, ConsentMo + 11 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| guelphtoday.com | #129,289 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| nais.org | #129,310 | ASP.NET, Adyen, Azure API Management + 22 more | Find emails |
| eaw.com.pl | #129,343 | AOS, Django, Google Tag Manager + 3 more | Find emails |
| timesdaily.com | #129,348 | DoubleClick (Google Ads), Google Publisher Tag, Google Tag Manager + 6 more | Find emails |
| privatelayer.com | #129,359 | Apache, Bootstrap, Fancybox + 13 more | Find emails |
| extragum.com | #129,361 | Amazon Route 53, Bootstrap, Brightcove + 13 more | Find emails |
| applicaster.com | #129,363 | Amazon CloudFront, Amazon Route 53, Cloudflare Bot Management + 18 more | Find emails |
| viewdns.info | #129,367 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| mobilifiver.com | #129,377 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| dealdoodle.co.uk | #129,395 | Apache, DigiCert, Google Fonts + 5 more | Find emails |
| freedownloadscenter.com | #129,398 | Google AdSense, Google Analytics, Google Tag Manager + 4 more | Find emails |
| prgloo.com | #129,414 | Azure DNS, Azure Front Door, DigiCert + 2 more | Find emails |
| bk55.ru | #129,421 | Cloudflare, Let's Encrypt, LiveInternet (Yadro) + 9 more | Find emails |
| iaa.gov.il | #129,423 | Amazon CloudFront, Bootstrap, DigiCert + 7 more | Find emails |
| probikeshop.fr | #129,426 | Brevo, Cloudflare edge/CDN, CookieHub + 9 more | Find emails |
| womentech.net | #129,449 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 9 more | Find emails |
| adiamor.com | #129,453 | ClickTale (Contentsquare), Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| netfu.co.kr | #129,460 | Apache, Google Fonts, PHP + 5 more | Find emails |
| kesako.ch | #129,466 | Font Awesome, Google Fonts, Let's Encrypt + 7 more | Find emails |
| chromehearts.com | #129,467 | Cloudflare Web Analytics, Cloudflare edge/CDN, Google Tag Manager + 11 more | Find emails |
| fireengineering.com | #129,469 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| qsoft.ru | #129,497 | Bitrix, Let's Encrypt, Nginx + 4 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 →