What powers group-c.co.jp?
Last seen Sep 2026 · 11 technologies across 11 categories
Analytics
Google Analytics
since Jan 2019
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Swiper
since Oct 2022
Miscellaneous
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Feb 2024
Programming languages
PHP
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
WordPress themes
Lightning
since Mar 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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 52% desktop
- 48% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.21 / 10 · ranked #3,082,616 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.0 MB · 72 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INFOSPHERE NTT PC Communications, Inc. (119.245.187.24)
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: GlobalSign, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 17,069,275
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted