What powers casiopea.co.jp?
Last seen Oct 2026 · 6 technologies across 4 categories
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Video players
YouTube
since Apr 2019
Web servers
Apache HTTP Server
since Apr 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 61% phone
- 39% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.91 / 10 · ranked #644,542 of all domains
40 referring domains · OpenPageRank
Search traffic
7 est. monthly organic visits (US)
18 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 1.6 MB · 60 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Casiopea
- Founded: 1977
From Wikidata (CC0).
Infrastructure
- Hosted on CPI-NET - KDDI Web Communications Inc. (150.60.230.81)
- DNS: cpi.ad.jp
- Email: secure.ne.jp
- Email security: SPF (hard fail), no DMARC record
- SSL: JPRS, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,744,228, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted