What powers a-class1.com?
Last seen Jun 2026 · 22 technologies across 15 categories
Advertising
Google AdSense
since Sep 2020
Affiliate programs
Analytics
Google Analytics
since Apr 2020
Quantcast Measure
since Feb 2022
CDN
CMS
WordPress
since Apr 2020
Databases
MySQL
since Apr 2020
Font scripts
Font Awesome
since Apr 2020
Google Font API
since Apr 2020
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Apr 2020
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Apr 2020
Web servers
Nginx
since Apr 2020
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.39 / 10 · ranked #37,983,790 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.4 MB · 79 requests
- WordPress theme: cocoon-master (child: cocoon-child-master) · all themes
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Google Hosted Libraries Mar 2026
- detected Google Tag Manager Jan 2026
- dropped Google Tag Manager Dec 2025
- dropped Microsoft ASP.NET Aug 2025
- dropped Snowplow Analytics Aug 2025