What powers sakura-sup.jp?
Last seen Sep 2026 · 12 technologies across 10 categories
Affiliate programs
Analytics
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Programming languages
Web servers
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
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.90 / 10 · ranked #14,678,650 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 1.9 MB · 67 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 50代中国語初心者の学習方法、オンラインレッスン比較
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Xserver (183.181.97.70)
- DNS: Xserver
- Email: sakura-sup.jp
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,615,137
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted