What powers osc21.co.jp?
Last seen Jun 2026 · 18 technologies across 13 categories
Analytics
Google Analytics
since May 2019
Authentication
Facebook Login
since Jul 2021
CMS
WordPress
since May 2021
Databases
MySQL
since May 2021
Font scripts
Typekit
since May 2021
JavaScript libraries
Marketing automation
BowNow
since Feb 2022
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
PHP
since May 2021
SEO
Web servers
Apache HTTP Server
since May 2019
Webmail
Apple iCloud Mail
since Sep 2025
Audience
- 81% desktop
- 19% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.76 / 10 · ranked #4,595,602 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 7.9 MB · 73 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Apple iCloud Mail Sep 2025
- dropped Moment.js Aug 2025