What powers marss.co.jp?
Last seen Sep 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Jan 2019
Font scripts
Hosting panels
Plesk
since Nov 2023
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
UI frameworks
Pure CSS
since Jan 2019
Web servers
Nginx
since Nov 2023
Webmail
Microsoft 365
since Feb 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 71% desktop
- 29% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.27 / 10 · ranked #9,068,272 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 11.8 MB · 68 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GMOCL GMO GlobalSign Holdings K.K. (153.123.7.92)
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record
- SSL: GlobalSign, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 15,137,923, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted