What powers heart-school.jp?
Last seen Jun 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Aug 2023
CMS
Databases
MySQL
since Jun 2024
Font scripts
Google Font API
since Jun 2024
Twitter Emoji (Twemoji)
since Dec 2025
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Programming languages
PHP
since May 2024
UI frameworks
Animate.css
since Jun 2024
Web servers
Nginx
since Jan 2019
WordPress plugins
WP-PageNavi
since Jun 2024
Audience
- 63% phone
- 37% desktop
Japan
Philippines
Nigeria
India
Kenya
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.17 / 10 · ranked #1,317,403 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.0 MB · 82 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| heart-school.jp | 13 |
| hro.heart-school.jp | 5 |
| www.heart-school.jp | 2 |
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025