What powers qoj.ac?
Last seen Jun 2026 · 11 technologies across 8 categories
Analytics
Cloudflare Browser Insights
since Dec 2025
CDN
cdnjs
since Oct 2023
Cloudflare
since Sep 2022
Font scripts
Glyphicons
since Sep 2022
JavaScript graphics
JavaScript libraries
Highlight.js
since Oct 2023
Miscellaneous
UI frameworks
Webmail
Google Workspace
since Sep 2022
Audience
- 91% desktop
- 9% phone
Hong Kong SAR China
Japan
Vietnam
South Korea
Bangladesh
Taiwan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.63 / 10 · ranked #2,272,386 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 0.4 MB · 33 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| qoj.ac | 10 |
| universal-cup-website.qoj.ac | 7 |
| domjudge.qoj.ac | 5 |
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Dec 2025