What powers f2b.group?
Last seen Sep 2026 · 11 technologies across 8 categories
Analytics
Yandex.Metrika
since May 2026
CRM
amoCRM
since May 2026
Font scripts
Google Font API
since May 2026
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
Open Graph
since Jul 2026
Security
HSTS
since May 2026
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Russia
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 5.3 s |
| INP | 200 ms |
| CLS | 0.3 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Russian
- Weight: 9.1 MB · 132 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on SELECTEL-MSK (90.156.158.38)
- DNS: nic.ru
- Email: Yandex 360
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Verified with: Google, Yandex Webmaster
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Open Graph Jul 2026