What powers hdschool.ru?
Last seen Jun 2026 · 13 technologies across 11 categories
CDN
Amazon S3
since Dec 2025
Font scripts
Font Awesome
since Dec 2025
Hosting
REG.RU
since Dec 2025
JavaScript graphics
KaTeX
since Dec 2025
Miscellaneous
PaaS
Amazon Web Services
since Dec 2025
Programming languages
Ruby
since Dec 2025
UI frameworks
Tailwind CSS
since Dec 2025
Video players
VideoJS
since Dec 2025
Web frameworks
Ruby on Rails
since Dec 2025
Web servers
Audience
- 53% phone
- 40% desktop
- 7% tablet
Russia
Germany
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.09 / 10 · ranked #118,209,285 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0.1 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Russian
- Weight: 25.5 MB · 94 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.