What powers 
tsuzuki.jp?
Last seen Aug 2026 · 16 technologies across 11 categories
Advertising
Analytics
CDN
Font scripts
JavaScript libraries
Programming languages
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
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
- 58% phone
- 42% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.74 / 10 · ranked #285,236 of all domains
66 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 10.4 MB · 228 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INET-NET I-NET CORP. (202.226.61.131)
- DNS: vips.ne.jp
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: GlobalSign, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 7,684,545, 2 hosts
- Verified with: GlobalSign, Google
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
- detected core-js Jul 2026
- detected Facebook Pixel Jul 2026