CAPTCHA & Bot Protection
927 of the 1,000,000 top sites in our Tranco top-1M census run Yandex SmartCaptcha (0.1%). Yandex's CAPTCHA challenge product for filtering bot traffic. Detection is homepage-level HTML/header fingerprinting, so a site can run Yandex SmartCaptcha on other pages without it showing here.
Other captcha & bot protection
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | firstvds.ru | #1,843 (Tranco) | Find emails |
| 2 | nag.ru | #3,951 (Tranco) | Find emails |
| 3 | kommersant.ru | #4,865 (Tranco) | Find emails |
| 4 | punchmedia.ru |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| hostmaster.uz | #123,865 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| webshturm.ru | #124,566 | Astro, Let's Encrypt, Yandex CDN + 1 more | Find emails |
| schedex.ru | #125,713 | BotFAQtor, Google Tag Manager, Mail.ru Analytics (Top100) + 6 more | Find emails |
| #6,215 (Tranco) |
| Find emails |
| 5 | irecommend.ru | #6,269 (Tranco) | Find emails |
| antilopay.com | #125,741 | DDoS-Guard, Google Fonts, Let's Encrypt + 3 more | Find emails |
| infotecs.ru | #126,563 | Bitrix, Nginx, PHP | Find emails |
| irkutskmedia.ru | #126,817 | AdRiver, Bootstrap, Cloudflare + 10 more | Find emails |
| karofilm.ru | #127,832 | DDoS-Guard, Mindbox, Yandex Metrica + 1 more | Find emails |
| sport-marafon.ru | #129,143 | Cloudflare, Let's Encrypt, Yandex Metrica | Find emails |
| ul.su | #129,487 | Bitrix, Cloudflare, Google Analytics + 8 more | Find emails |
| seo-fast.ru | #129,534 | Bootstrap, Cloudflare, Font Awesome + 13 more | Find emails |
| dimeco.ru | #129,781 | Bootstrap, Let's Encrypt, Nginx + 8 more | Find emails |
| decanter.ru | #130,265 | Bitrix, Cloudflare, Fancybox + 10 more | Find emails |
| vernet.su | #132,325 | AOS, Bitrix, Let's Encrypt + 4 more | Find emails |
| shm.ru | #132,593 | Bitrix, Bootstrap, DDoS-Guard + 7 more | Find emails |
| visible.ru | #133,757 | Google Analytics, Google Tag Manager, Google Workspace + 7 more | Find emails |
| el-ed.ru | #134,102 | Google Tag Manager, Let's Encrypt, Nginx + 2 more | Find emails |
| huntworld.ru | #135,103 | Bitrix, DDoS-Guard, Google Maps + 4 more | Find emails |
| promokodus.com | #137,954 | Let's Encrypt, Telegram, VK + 3 more | Find emails |
| flyvi.io | #138,186 | Let's Encrypt, Nginx, Nuxt.js + 2 more | Find emails |
| easydonate.ru | #138,258 | Bootstrap, Cloudflare, DDoS-Guard + 12 more | Find emails |
| i-teco.ru | #138,628 | Astro, Nginx, Telegram + 1 more | Find emails |
| srochnodengi.ru | #138,661 | Bitrix, Cloudflare, DDoS-Guard + 12 more | Find emails |
| etelecom.ru | #138,700 | Let's Encrypt, Nginx, PHP + 5 more | Find emails |
| azimuth.ru | #139,456 | Bitrix, Qrator, Ruby on Rails + 2 more | Find emails |
| ats99.ru | #139,695 | Let's Encrypt, Nginx, Slick Carousel + 3 more | Find emails |
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 →