What powers hakubutufes.info?
Last seen Aug 2026 · 11 technologies across 8 categories
CDN
Cloudflare
since Oct 2025
CMS
Jimdo
since Feb 2019
Sendgrid
since Aug 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Oct 2025
Open Graph
since Sep 2022
Security
Cloudflare Bot Management
since Oct 2025
HSTS
since Sep 2022
Video players
YouTube
since Jun 2025
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
- 63% phone
- 37% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.05 / 10 · ranked #1,500,527 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese (Japan)
- CDN: Cloudflare
- Weight: 7.9 MB · 46 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped core-js Apr 2026
- dropped Nginx Nov 2025
- detected Cloudflare Oct 2025
- detected Cloudflare Bot Management Oct 2025
- detected HTTP/3 Oct 2025
- detected Sendgrid Oct 2025