What powers oppa.or.jp?
Last seen Aug 2026 · 7 technologies across 7 categories
Analytics
CMS
Joomla
since Apr 2019
JavaScript frameworks
JavaScript libraries
Slimbox
since Apr 2019
Miscellaneous
RSS
since Jul 2026
Programming languages
Web servers
Apache HTTP Server
since Apr 2019
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 68% phone
- 32% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.52 / 10 · ranked #2,461,826 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 250 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 34.5 MB · 175 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.