What powers 
maru-sin.co.jp?
Last seen Oct 2026 · 24 technologies across 16 categories
Analytics
Caching
CDN
CMS
CRM
Databases
JavaScript graphics
JavaScript libraries
Marketing automation
Miscellaneous
Programming languages
Security
Tag managers
Video players
Web servers
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
- Nov 2026 *: Allowed (was Blocked)
- Oct 2026 *: Blocked (was Allowed)
- Oct 2026 *: Allowed (was Blocked)
- Sep 2026 *: Blocked (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 65% desktop
- 35% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.54 / 10 · ranked #856,047 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Zenedge
- Weight: 12.7 MB · 169 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Oracle Cloud (138.2.59.23)
- DNS: idcfcloud.com
- Email: maru-sin.co.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Nijimo, Inc., RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 11,140,209, 4 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.maru-sin.co.jp | 15 |
| info.maru-sin.co.jp | 13 |
| recruit.maru-sin.co.jp | 13 |
Full technology history →
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Recent changes
- detected Facebook Pixel Jul 2026
- detected Yoast SEO Apr 2026
- dropped RSS Mar 2026