What powers codeforfun.jp?
Last seen Jun 2026 · 52 technologies across 28 categories
Affiliate programs
Amazon Associates
since Sep 2023
Analytics
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Google Cloud CDN
since Feb 2025
jsDelivr
since Jul 2022
CMS
WordPress
since Jul 2019
Customer data platform
Databases
MySQL
since Jul 2019
Font scripts
Google Font API
since Jul 2019
Hosting
Xserver
since Apr 2024
IaaS
Google Cloud
since Feb 2025
Issue trackers
Sentry
since Jul 2022
JavaScript frameworks
Next.js App Router
since Jun 2026
React
since Jul 2024
JavaScript libraries
LMS
Teachable
since Jul 2022
Miscellaneous
HTTP/3
since Oct 2022
Open Graph
since Sep 2022
Prism
since Jul 2019
RSS
since Dec 2022
Webpack
since Jun 2026
Page builders
WordPress Block Editor
since Jul 2024
Payment processors
Performance
Priority Hints
since May 2024
Programming languages
Reverse proxies
Rich text editors
RUM
New Relic
since Feb 2025
Security
Tag managers
Google Tag Manager
since Jul 2019
UI frameworks
Video players
Web frameworks
Ruby on Rails
since Jul 2022
Web servers
Nginx
since Jul 2019
WordPress plugins
Popup Maker
since Jul 2023
WordPress Super Cache
since Apr 2024
Audience
- 60% desktop
- 40% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.98 / 10 · ranked #1,625,169 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.7 MB · 85 requests
- WordPress theme: jinr (child: jinr-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| courses.codeforfun.jp | 36 |
| codeforfun.jp | 22 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Kong Jun 2026
- detected Next.js Jun 2026
- detected Next.js App Router Jun 2026
- detected Node.js Jun 2026
- detected Pendo Jun 2026
- detected Radix UI Jun 2026
- detected React Jun 2026
- detected shadcn/ui Jun 2026
- detected Tailwind CSS Jun 2026
- detected Webpack Jun 2026
- dropped Cloudflare Bot Management May 2026
- detected jQuery UI Feb 2026
- detected Popup Maker Feb 2026
- dropped 33Across Jan 2026
- dropped Adobe Audience Manager Jan 2026
- dropped AppNexus Jan 2026
- dropped Cloudflare Browser Insights Jan 2026
- dropped Google AdSense Jan 2026
- dropped ID5 Jan 2026
- dropped jQuery UI Jan 2026
- dropped Microsoft ASP.NET Jan 2026
- dropped OpenX Jan 2026
- dropped Popup Maker Jan 2026
- dropped Po.st Jan 2026
- dropped Prebid Jan 2026
- dropped PubMatic Jan 2026
- dropped Quantcast Measure Jan 2026
- dropped Rubicon Project Jan 2026
- dropped Smart Ad Server Jan 2026
- dropped Snowplow Analytics Jan 2026
- dropped TripleLift Jan 2026
- dropped Utiq Jan 2026
- detected Adobe Audience Manager Aug 2025