What powers supercals.jp?
Last seen Oct 2026 · 12 technologies across 7 categories
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Java
since Jun 2026
Rich text editors
Security
HSTS
since Jun 2026
UI frameworks
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 98% desktop
- 2% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.28 / 10 · ranked #216,959 of all domains
100 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 1.0 MB · 24 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- DNS: supercals.jp
- Email: supercals.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Jan 2027
- Common Crawl link graph: rank 11,491,514, 7 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted