What powers koba.or.jp?
Last seen Jun 2026 · 11 technologies across 10 categories
CDN
Google Hosted Libraries
since Feb 2022
CMS
Gnuboard
since Apr 2022
Databases
MySQL
since Apr 2022
Font scripts
Font Awesome
since Apr 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
UI frameworks
Bootstrap
since Apr 2022
Web servers
Apache HTTP Server
since Aug 2018
Widgets
FlexSlider
since Apr 2022
Audience
- 87% desktop
- 13% phone
Japan
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.79 / 10 · ranked #2,005,171 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.6 MB · 94 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| koba.or.jp | 11 |
| www.koba.or.jp | 11 |
| m.koba.or.jp | 5 |