What powers classlab.co.jp?
Last seen Jun 2026 · 42 technologies across 21 categories
Advertising
Google AdSense
since Nov 2023
Analytics
Google Analytics
since Sep 2021
CDN
cdnjs
since Aug 2023
Cloudflare
since Aug 2023
jQuery CDN
since Apr 2022
jsDelivr
since Nov 2022
Unpkg
since Nov 2022
CMS
CRM
Salesforce
since Aug 2022
Databases
MySQL
since Sep 2021
Font scripts
Hosting
Sakura Internet
since Aug 2022
JavaScript frameworks
JavaScript libraries
Marketing automation
Shanon
since Mar 2026
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Google PageSpeed
since May 2023
Priority Hints
since Dec 2025
Programming languages
PHP
since Sep 2021
Security
reCAPTCHA
since Jan 2023
Tag managers
Google Tag Manager
since Aug 2022
UI frameworks
Tailwind CSS
since Jun 2024
Vuetify
since Sep 2023
Web servers
Nginx
since Sep 2021
Webmail
Apple iCloud Mail
since Feb 2025
Google Workspace
since Aug 2022
Widgets
WordPress plugins
Audience
- 58% phone
- 41% desktop
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.48 / 10 · ranked #918,984 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0.6 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 17.2 MB · 194 requests
- WordPress theme: ewebot (child: ewebot-child) · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| classlab.co.jp | 29 |
| guide-message.classlab.co.jp | 12 |
| internetguide.classlab.co.jp | 11 |
| chubuelec.classlab.co.jp | 8 |
| chugokuelec.classlab.co.jp | 8 |
| kyushuelec.classlab.co.jp | 8 |
Full technology history →
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Recent changes
- detected Shanon Mar 2026
- detected Priority Hints Dec 2025
- detected RSS Nov 2025