What powers koi.or.kr?
Last seen Jun 2026 · 27 technologies across 11 categories
Analytics
Cloudflare Browser Insights
since Jun 2023
Google Analytics
since May 2019
CDN
Google Workspace
since Mar 2023
Mailgun
since Aug 2022
Issue trackers
Sentry
since Jun 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
PWA
since Apr 2023
RSS
since Dec 2022
Webpack
since Aug 2022
PaaS
Amazon Web Services
since Apr 2021
Programming languages
Static site generator
Jekyll
since Apr 2021
UI frameworks
Audience
- 84% desktop
- 16% phone
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.41 / 10 · ranked #7,359,348 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- CDN: Cloudflare
- Weight: 0.4 MB · 19 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| results.koi.or.kr | 15 |
| contest.koi.or.kr | 12 |
| koi.or.kr | 12 |