What powers 
oshihaku.jp?
Last seen Sep 2026 · 24 technologies across 14 categories
Advertising
Analytics
CDN
JavaScript libraries
Load balancers
Miscellaneous
PaaS
Performance
Security
Tag managers
Video players
Web servers
Webmail
Widgets
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 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
- 53% desktop
- 44% phone
- 3% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.11 / 10 · ranked #236,821 of all domains
81 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 11.9 MB · 200 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (13.32.241.83)
- DNS: Amazon Route 53
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 9,154,491, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| oshihaku.jp | 22 |
| www.oshihaku.jp | 21 |
| prd.oshihaku.jp | 9 |
Full technology history →
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Recent changes
- detected TikTok Pixel Sep 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Priority Hints Mar 2026