What powers castel.jp?
Last seen Jun 2026 · 21 technologies across 14 categories
Advertising
AppNexus
since Jun 2020
Criteo
since Jun 2020
Google AdSense
since Jan 2019
Google Publisher Tag
since Feb 2021
Twitter Ads
since Mar 2022
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Nov 2023
Cookie compliance
Funding Choices
since Feb 2024
Font scripts
Google Font API
since Dec 2025
JavaScript libraries
LazySizes
since Feb 2022
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Security
Cloudflare Bot Management
since Nov 2023
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Jan 2019
Web frameworks
Laravel
since Sep 2021
Web servers
Nginx
since Jan 2019
Webmail
Google Workspace
since Aug 2022
Widgets
Audience
- 88% phone
- 12% desktop
Japan
Australia
South Korea
Taiwan
Singapore
Hong Kong SAR China
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.69 / 10 · ranked #362,125 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 1.6 MB · 107 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| castel.jp | 17 |
| staging.castel.jp | 10 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped 33Across Jan 2026
- dropped Amazon Advertising Dec 2025
- detected Google Font API Dec 2025
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025