What powers atom21.co.jp?
Last seen Jun 2026 · 15 technologies across 9 categories
Analytics
Umami
since Oct 2024
CDN
Amazon CloudFront
since Aug 2024
Font scripts
Google Font API
since Dec 2020
JavaScript frameworks
Riot
since Nov 2021
JavaScript libraries
Marketing automation
BowNow
since Feb 2022
PaaS
Amazon Web Services
since Aug 2024
Security
HSTS
since Sep 2022
Web servers
Apache HTTP Server
since Dec 2020
Audience
- 76% desktop
- 24% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.05 / 10 · ranked #1,508,879 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 3.0 MB · 102 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Moment.js Aug 2025