What powers hayakawabooks.com?
Last seen Jun 2026 · 17 technologies across 10 categories
Analytics
Google Analytics
since Jan 2019
Issue trackers
Sentry
since Nov 2019
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Jul 2025
Programming languages
Reverse proxies
Envoy
since Jun 2024
Security
HSTS
since Sep 2022
UI frameworks
Tailwind CSS
since Apr 2022
Audience
- 82% phone
- 15% desktop
- 3% tablet
Japan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.97 / 10 · ranked #591,769 of all domains
124 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese (Japan)
- Weight: 1.9 MB · 109 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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