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 |
|---|---|---|---|
| otcpharm.ru | #482,392 | Bitrix, Let's Encrypt, Nginx + 2 more | Find emails |
| astragroup.ru | #483,300 | Bitrix, Bootstrap, EnvyBox + 7 more | Find emails |
| kub-24.ru | #484,399 | All in One SEO, Bootstrap, Fancybox + 9 more | Find emails |
| #6,215 (Tranco) |
| Find emails |
| 5 | irecommend.ru | #6,269 (Tranco) | Find emails |
| startexam.com |
| #484,589 |
| Fancybox, Let's Encrypt, Nginx + 3 more |
| Find emails |
| arenarussia.ru | #486,573 | Google Tag Manager, LiveInternet (Yadro), Mail.ru Analytics (Top100) + 9 more | Find emails |
| ncip.by | #486,812 | Bitrix, Bootstrap, Django + 12 more | Find emails |
| tz25.ru | #487,810 | Bitrix, Font Awesome, JivoChat + 5 more | Find emails |
| motivity.ru | #487,866 | Fancybox, Google Fonts, Let's Encrypt + 6 more | Find emails |
| dcenergo.ru | #488,335 | Bitrix, Fancybox, Mindbox + 6 more | Find emails |
| paygine.ru | #494,310 | DDoS-Guard, Nuxt.js, Yandex Metrica + 1 more | Find emails |
| mc-aybolit.ru | #494,588 | AOS, Bitrix, Let's Encrypt + 8 more | Find emails |
| minerich.net | #496,026 | Bootstrap, Cloudflare, DDoS-Guard + 7 more | Find emails |
| interforums.ru | #499,185 | Google Fonts, Let's Encrypt, Mail.ru Analytics (Top100) + 5 more | Find emails |
| rzv.ru | #499,481 | Bitrix, BotFAQtor, Fancybox + 8 more | Find emails |
| artantik.ru | #499,534 | Apache, Let's Encrypt, PHP + 4 more | Find emails |
| torgi223.ru | #499,781 | Mail.ru Analytics (Top100), Nginx, PHP + 4 more | Find emails |
| culturavrn.ru | #500,922 | Fancybox, Google Analytics, Let's Encrypt + 9 more | Find emails |
| infotaktika.ru | #501,894 | AOS, Bitrix, Let's Encrypt + 5 more | Find emails |
| ic-tech.ru | #501,937 | Elementor, Let's Encrypt, Mail.ru Analytics (Top100) + 3 more | Find emails |
| neagent.info | #503,434 | Fancybox, Let's Encrypt, LiveInternet (Yadro) + 5 more | Find emails |
| kurs-log.ru | #504,088 | ASP.NET, Google Analytics, Google Fonts + 5 more | Find emails |
| molbulak.ru | #509,192 | Bootstrap, Nginx, Popper.js + 2 more | Find emails |
| raketacn.ru | #509,796 | DDoS-Guard, Let's Encrypt, Mail.ru Analytics (Top100) + 5 more | Find emails |
| copyright.ru | #510,019 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| jetinfo.ru | #511,770 | WordPress, Yandex CDN, jQuery | 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 →