What powers airu21.com?
Last seen Jun 2026 · 13 technologies across 10 categories
Analytics
Google Analytics
since Oct 2020
Authentication
Facebook Login
since Jul 2021
CMS
Concrete CMS
since Oct 2020
Font scripts
Font Awesome
since Oct 2020
Google Font API
since Oct 2020
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Programming languages
PHP
since Oct 2020
Video players
YouTube
since Aug 2021
Web servers
Apache HTTP Server
since Oct 2020
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.52 / 10 · ranked #23,772,902 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.9 MB · 160 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.