What powers ksai.jp?
Last seen Sep 2026 · 16 technologies across 11 categories
Authentication
Clerk
since Aug 2026
CDN
Cloudflare
since Aug 2026
Development
Turbopack
since Aug 2026
Issue trackers
Sentry
since Aug 2026
JavaScript frameworks
Miscellaneous
Webpack
since Aug 2026
PaaS
Vercel
since Aug 2026
Performance
Priority Hints
since Aug 2026
Programming languages
Node.js
since Aug 2026
Security
Cloudflare Bot Management
since Aug 2026
HSTS
since Aug 2026
UI frameworks
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.92 / 10 · ranked #14,250,098 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.7 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 0.7 MB · 33 requests
Homepage as crawled by the HTTP Archive, Sep 2026.