What powers kouba-fes.jp?
Last seen Jun 2026 · 25 technologies across 14 categories
Analytics
Google Analytics
since Feb 2019
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Google Cloud CDN
since Jul 2024
Google Hosted Libraries
since Feb 2022
CMS
Databases
Font scripts
Google Font API
since Jul 2024
IaaS
Google Cloud
since Jul 2024
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
STUDIO
since Jul 2024
Programming languages
SEO
Tag managers
Google Tag Manager
since Feb 2019
Web servers
Nginx
since Feb 2019
Audience
- 59% phone
- 41% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.75 / 10 · ranked #280,164 of all domains
105 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 3.1 MB · 65 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| archive.kouba-fes.jp | 14 |
| kouba-fes.jp | 13 |
| 2023.kouba-fes.jp | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Priority Hints May 2026
- dropped core-js Apr 2026
- detected Priority Hints Feb 2026