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 |
|---|---|---|---|
| therecord.com | #55,129 | Amazon Advertising, Amazon Route 53, DoubleClick (Google Ads) + 11 more | Find emails |
| siu.edu.ar | #55,133 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| esv.org | #55,143 | DigiCert, Django, Google Analytics + 5 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | taboola.com | #187 (Tranco) | Find emails |
| eventcreate.com |
| #55,155 |
| AOS, Adobe Fonts (Typekit), Atlassian Statuspage + 26 more |
| Find emails |
| peterburg2.ru | #55,169 | DDoS-Guard, Let's Encrypt, LiveInternet (Yadro) + 5 more | Find emails |
| akipress.org | #55,178 | DDoS-Guard, Font Awesome, Google AdSense + 7 more | Find emails |
| ufa1.ru | #55,188 | DDoS-Guard, Let's Encrypt | Find emails |
| miningrigrentals.com | #55,189 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| mycnhstore.com | #55,196 | Akamai Bot Manager, Akamai edge/CDN, DigiCert + 3 more | Find emails |
| 1881.no | #55,228 | ASP.NET, Adnami, Azure API Management + 7 more | Find emails |
| netassist.ne.jp | #55,240 | Apache, Google Fonts, Google Tag Manager + 5 more | Find emails |
| kai-you.net | #55,255 | Amazon Route 53, AnyMind Group, Google Analytics + 3 more | Find emails |
| innogames.com | #55,256 | Apache, ConsentMo, Fastly + 5 more | Find emails |
| mundopositivo.com.br | #55,290 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| heidelberg.com | #55,298 | Google Tag Manager, Microsoft 365, Nginx + 3 more | Find emails |
| legalclarity.org | #55,318 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| edikted.com | #55,324 | Adobe Fonts (Typekit), Afterpay, Cloudflare edge/CDN + 11 more | Find emails |
| neom.com | #55,362 | Cloudflare, Cloudflare edge/CDN, Fastly + 3 more | Find emails |
| lawgazette.co.uk | #55,368 | ASP.NET, AdRoll, Adobe Fonts (Typekit) + 18 more | Find emails |
| vostok-electra.ru | #55,385 | Google Analytics, Nginx, PHP + 2 more | Find emails |
| ag.com | #55,389 | Akamai edge/CDN, Akamai mPulse, Apache + 8 more | Find emails |
| chronogolf.com | #55,410 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 17 more | Find emails |
| creators.com | #55,417 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| recoverydatabase.net | #55,431 | Amazon (ACM), Amazon Route 53, Amazon Web Services + 5 more | Find emails |
| okmeter.ru | #55,461 | Google Fonts, Let's Encrypt, jQuery + 1 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →