What powers seiwa-gakki.co.jp?
Last seen Sep 2026 · 17 technologies across 13 categories
Analytics
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Page builders
Programming languages
Tag managers
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Web servers
WordPress plugins
WordPress themes
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.13 / 10 · ranked #3,263,841 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.5 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 2000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 4.5 MB · 55 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- セイワ楽器
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on GMO Internet (157.7.189.245)
- DNS: Muumuu Domain
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 13,045,071
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted