What powers koutairenkendo.jp?
Last seen Jun 2026 · 10 technologies across 7 categories
CMS
Google Sites
since Jun 2022
Font scripts
Google Font API
since Jun 2022
JavaScript libraries
Closure Library
since Jan 2026
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Web servers
Apache HTTP Server
since Aug 2018
Webmail
Google Workspace
since Aug 2022
Audience
- 89% phone
- 11% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.00 / 10 · ranked #1,591,563 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 275 ms |
| CLS | 0.15 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.2 MB · 42 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| kanto.koutairenkendo.jp | 6 |
| chiba.koutairenkendo.jp | 4 |
| tochigi.koutairenkendo.jp | 4 |
| gunma.koutairenkendo.jp | 3 |
| oita.koutairenkendo.jp | 3 |
| saitama.koutairenkendo.jp | 3 |
| yamanashi.koutairenkendo.jp | 3 |
Full technology history →
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Recent changes
- detected Closure Library Jan 2026