What powers oncalc.ru?
Last seen Jun 2026 · 13 technologies across 9 categories
Advertising
ADFOX
since Jun 2022
Google AdSense
since Jan 2019
Analytics
Liveinternet
since Jan 2019
Yandex.Metrika
since May 2019
CDN
cdnjs
since Nov 2021
Cloudflare
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Segmentation
Adobe Audience Manager
since Jun 2022
Web servers
Apache HTTP Server
since Aug 2025
Audience
- 90% phone
- 10% desktop
Russia
Belarus
Germany
United Kingdom
France
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.24 / 10 · ranked #9,368,166 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 550 ms |
| CLS | 0.4 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Russian
- Weight: 0.6 MB · 201 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Preact May 2026
- dropped Preact Apr 2026
- detected Adobe Audience Manager Feb 2026
- detected Preact Feb 2026
- dropped Adobe Audience Manager Jan 2026
- dropped Preact Dec 2025
- detected Preact Oct 2025
- dropped HTTP/3 Sep 2025
- dropped Preact Sep 2025