What powers nchm.jp?
Last seen Oct 2026 · 24 technologies across 18 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
Security
Web server extensions
Web servers
Widgets
WordPress plugins
WordPress themes
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 72% phone
- 28% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.10 / 10 · ranked #237,786 of all domains
103 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 5.0 MB · 103 requests
- WordPress theme: lightning (child: lightning-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Niigata City History Museum
- Founded: 2004
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on CPI-NET KDDI Web Communications Inc. (150.60.226.187)
- DNS: cpi.ad.jp
- Email: secure.ne.jp
- Email security: SPF (hard fail), no DMARC record
- Common Crawl link graph: rank 2,691,787, 2 hosts
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Twitter Emoji (Twemoji) Dec 2025