What powers celsys.co.jp?
Last seen Mar 2023 · 16 technologies across 13 categories
Advertising
Twitter Ads
since Jul 2021
Analytics
Authentication
Facebook Login
since Jul 2021
CDN
jsDelivr
since Jul 2020
Font scripts
Google Font API
since Apr 2018
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
C
since Feb 2023
Security
HSTS
since Feb 2023
Web servers
Nginx
since Apr 2018
Webmail
Google Workspace
since Aug 2022
Widgets
Twitter
since Apr 2018
Audience
- 61% phone
- 39% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.32 / 10 · ranked #189,832 of all domains
118 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.