What powers sakai-lab.jp?
Last seen Sep 2026 · 7 technologies across 5 categories
Analytics
Google Analytics
since Mar 2024
JavaScript libraries
Miscellaneous
SWFObject
since Mar 2024
Tag managers
Google Tag Manager
since Mar 2024
Web servers
Nginx
since Mar 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.35 / 10 · ranked #1,062,496 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.3 MB · 40 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (112.78.112.96)
- DNS: Google Cloud DNS
- Email: Sakura Internet
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 243,026
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted