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 |
|---|---|---|---|
| seo-fast.bz | #285,416 | Bootstrap, Font Awesome, Google AdSense + 13 more | Find emails |
| ms56.su | #287,210 | Google Tag Manager, Nginx, Slick Carousel + 4 more | Find emails |
| flagman-it.ru | #290,041 | Font Awesome, Google Analytics, Google Fonts + 6 more | Find emails |
| #6,215 (Tranco) |
| Find emails |
| 5 | irecommend.ru | #6,269 (Tranco) | Find emails |
| vsekroham.ru |
| #292,055 |
| Bitrix, DDoS-Guard, Google Analytics + 3 more |
| Find emails |
| ursus.ru | #294,314 | Bitrix, Mail.ru Analytics (Top100), Microsoft 365 + 3 more | Find emails |
| korsars.pro | #294,709 | Cloudflare, Let's Encrypt, LiveInternet (Yadro) + 5 more | Find emails |
| melonfashion.ru | #295,339 | Bitrix, Nginx, PHP + 5 more | Find emails |
| mastera-plus.ru | #296,600 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| sevastopolmedia.ru | #297,812 | AdRiver, Bootstrap, Cloudflare + 10 more | Find emails |
| flor2u.ru | #298,025 | AppsFlyer, Flocktory, Google Tag Manager + 4 more | Find emails |
| daobit.ru | #300,134 | Google Fonts, Google Hosted Libraries, Nginx + 2 more | Find emails |
| prosoftsystems.ru | #301,885 | Adobe Fonts (Typekit), Fancybox, Google Fonts + 5 more | Find emails |
| alfazdrav.ru | #302,859 | Google Tag Manager, Mail.ru Analytics (Top100), Qrator + 1 more | Find emails |
| pozvon-ok.ru | #303,198 | DDoS-Guard, Google Fonts, PHP + 1 more | Find emails |
| trinet.ru | #305,465 | Let's Encrypt, Nginx, WordPress + 1 more | Find emails |
| ruspetrol.ru | #305,808 | Bitrix, Font Awesome, JivoChat + 6 more | Find emails |
| posudacenter.ru | #306,372 | Bitrix, Font Awesome, Google Fonts + 6 more | Find emails |
| rembitteh.ru | #306,433 | ASP.NET, JivoChat, Let's Encrypt + 3 more | Find emails |
| b2b-logist.com | #308,624 | Bitrix, Google Analytics, Google Tag Manager + 7 more | Find emails |
| rtraveler.ru | #309,947 | 24smi.net, Django, Let's Encrypt + 3 more | Find emails |
| sparm.com | #310,803 | DDoS-Guard, Fancybox, Font Awesome + 7 more | Find emails |
| yahont.online | #312,671 | Bootstrap, Fancybox, Let's Encrypt + 12 more | Find emails |
| netminusa.ru | #313,128 | Google Analytics, Google Tag Manager, HTMX + 3 more | Find emails |
| golden-time.ru | #313,892 | Bitrix, Google Analytics, Let's Encrypt + 4 more | Find emails |
| magic-trans.ru | #314,914 | Bitrix, DDoS-Guard, Font Awesome + 9 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 →