What powers ghc-j.com?
Last seen Jun 2026 · 43 technologies across 21 categories
A/B Testing
Google Optimize
since Jun 2021
Analytics
Google Analytics
since Feb 2019
Microsoft Clarity
since Jan 2022
CDN
Amazon CloudFront
since Sep 2025
Amazon S3
since Sep 2025
cdnjs
since Sep 2025
Cloudflare
since Feb 2022
Google Hosted Libraries
since Feb 2022
jQuery CDN
since Feb 2022
Unpkg
since Sep 2025
CMS
WordPress
since Feb 2019
Databases
MySQL
since Feb 2019
Documentation
Zendesk
since Aug 2022
Font scripts
Google Font API
since Oct 2019
JavaScript frameworks
JavaScript libraries
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
RSS
since Jul 2023
PaaS
Amazon Web Services
since Aug 2022
Performance
Priority Hints
since Jul 2024
Programming languages
PHP
since Feb 2019
Security
reCAPTCHA
since Apr 2019
Tag managers
Google Tag Manager
since Feb 2019
UI frameworks
Web servers
Nginx
since Jul 2024
Webmail
Microsoft 365
since Aug 2022
Widgets
AddToAny
since Feb 2020
WordPress plugins
Contact Form 7
since Feb 2022
WP-PageNavi
since Feb 2022
Audience
- 72% phone
- 27% desktop
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.02 / 10 · ranked #552,975 of all domains
118 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 7.7 MB · 141 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.ghc-j.com | 27 |
| gemmed.ghc-j.com | 22 |
| leapjournal.ghc-j.com | 16 |
| app.dev-survey-workload.ghc-j.com | 14 |
Full technology history →
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Recent changes
- dropped Apache HTTP Server Sep 2025
- dropped Babel Sep 2025
- dropped Jetpack Sep 2025
- dropped MonsterInsights Sep 2025
- dropped Twitter Emoji (Twemoji) Sep 2025