What powers a-certain-professor.com?
Last seen Aug 2026 · 4 technologies across 4 categories
Caching
Varnish
since Aug 2026
CDN
Fastly
since Aug 2026
Hosting
Sakura Internet
since Aug 2026
PaaS
GitHub Pages
since Aug 2026
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
- 61% desktop
- 39% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 0.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Fastly
- Weight: 19.2 MB · 14 requests
Homepage as crawled by the HTTP Archive, Aug 2026.