What powers gcccc.jp?
Last seen Aug 2026 · 11 technologies across 9 categories
Analytics
CMS
Databases
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
WordPress plugins
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
- 91% desktop
- 9% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.53 / 10 · ranked #865,347 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 4.1 MB · 40 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 民間(七会)連合協定工事請負契約約款委員会
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on PSPINC-BDC (216.230.253.81)
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: CloudSecure Corporation, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,649,604, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped DreamWeaver Jul 2026
- dropped jQuery Jul 2026
- dropped jQuery CDN Jul 2026
- detected Contact Form 7 Jun 2026
- detected core-js Jun 2026
- detected LazySizes Jun 2026
- detected MySQL Jun 2026
- detected PHP Jun 2026
- detected reCAPTCHA Jun 2026
- detected RSS Jun 2026
- detected Swiper Jun 2026
- detected WordPress Jun 2026