What powers hpcastle.com?
Last seen Jun 2026 · 13 technologies across 11 categories
CDN
Google Cloud CDN
since Nov 2024
Databases
Firebase
since Nov 2024
Font scripts
Google Font API
since Nov 2024
IaaS
Google Cloud
since Nov 2024
JavaScript frameworks
Maps
Google Maps
since Nov 2024
Miscellaneous
HTTP/3
since Nov 2024
Open Graph
since Nov 2024
Page builders
STUDIO
since Nov 2024
Programming languages
Node.js
since Nov 2024
Tag managers
Google Tag Manager
since Nov 2024
Webmail
Google Workspace
since Nov 2024
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.38 / 10 · ranked #40,834,611 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 4.0 MB · 139 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Priority Hints May 2026
- detected Priority Hints Feb 2026