What powers lib-koshu.jp?
Last seen Jun 2026 · 25 technologies across 14 categories
Analytics
Google Analytics
since Feb 2024
CDN
cdnjs
since Feb 2024
Cloudflare
since Feb 2024
Google Hosted Libraries
since Feb 2024
jsDelivr
since Feb 2024
CMS
WordPress
since Jul 2019
Databases
MySQL
since Jul 2019
Font scripts
Google Font API
since Feb 2024
Twitter Emoji (Twemoji)
since Dec 2025
JavaScript libraries
Swiper
since Feb 2024
Maps
Google Maps
since Feb 2024
Miscellaneous
Open Graph
since Feb 2024
Operating systems
Red Hat
since Jul 2019
Programming languages
TypeScript
since Dec 2022
SEO
Web server extensions
Web servers
Widgets
FullCalendar
since Dec 2022
Audience
- 90% phone
- 10% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.79 / 10 · ranked #2,010,754 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.7 MB · 103 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025