What powers 21vk.biz?
Last seen Jun 2026 · 23 technologies across 13 categories
Analytics
Google Analytics
since Apr 2020
Linkedin Insight Tag
since Feb 2022
Liveinternet
since Apr 2020
Microsoft Clarity
since Jul 2021
Yandex.Metrika
since Apr 2020
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
CMS
Tilda
since Nov 2021
CRM
Bitrix24
since Aug 2021
Font scripts
Google Font API
since Nov 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Performance
Priority Hints
since Aug 2022
Programming languages
PHP
since Oct 2021
Security
Cloudflare Bot Management
since Oct 2024
DDoS-Guard
since Dec 2025
Tag managers
Google Tag Manager
since May 2021
Video players
YouTube
since Nov 2021
Web servers
Nginx
since Apr 2020
Audience
- 51% desktop
- 49% phone
Belarus
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.77 / 10 · ranked #4,511,795 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 10.4 MB · 91 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| mba.21vk.biz | 18 |
| www.21vk.biz | 15 |
| emba.21vk.biz | 13 |
| about.21vk.biz | 12 |
| studybrasil.21vk.biz | 9 |
Full technology history →
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Recent changes
- detected DDoS-Guard Dec 2025
- detected YouTube Oct 2025