What powers sakaiku.jp?
Last seen Jun 2026 · 22 technologies across 15 categories
A/B Testing
Optimizely
since Aug 2019
Advertising
DoubleClick for Publishers (DFP)
since Aug 2018
FreakOut
since Feb 2022
Google Publisher Tag
since Feb 2021
Analytics
Google Analytics
since Aug 2018
Authentication
Facebook Login
since Jul 2021
CDN
Ecommerce
MakeShop
since Sep 2022
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Operating systems
CentOS
since Aug 2018
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Aug 2018
Video players
YouTube
since Jan 2019
Web server extensions
Web servers
Audience
- 83% phone
- 17% desktop
Japan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.79 / 10 · ranked #267,662 of all domains
79 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.25 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.7 MB · 217 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.sakaiku.jp | 17 |
| camp.sakaiku.jp | 12 |
| kerinavi.sakaiku.jp | 5 |
Full technology history →
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Recent changes
- dropped PHP Jan 2026
- dropped Google Ads Dec 2025
- dropped Google Ads Conversion Tracking Dec 2025
- detected OpenSSL Dec 2025