What powers matsui-ken.co.jp?
Last seen Sep 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Dec 2022
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
JavaScript libraries
Programming languages
PHP
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
WP-PageNavi
since Feb 2022
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 59% desktop
- 41% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.06 / 10 · ranked #530,733 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.0 MB · 38 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Matsui Construction
- Founded: 1939
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on IIJ Internet Initiative Japan Inc. (133.110.250.44)
- DNS: nttbiz.jp
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 7,040,758, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted