What powers theory.co.jp?
Last seen Jun 2026 · 43 technologies across 20 categories
A/B Testing
Karte
since Oct 2023
Advertising
AppNexus
since Jun 2023
Criteo
since Jun 2018
Microsoft Advertising
since Jun 2024
Twitter Ads
since Apr 2021
Yahoo Advertising
since Apr 2022
Analytics
Google Analytics
since Jun 2018
Pinterest Conversion Tag
since Sep 2023
Riskified
since Mar 2025
TikTok Pixel
since Sep 2022
CDN
Akamai
since Jul 2019
Amazon S3
since Sep 2022
cdnjs
since Nov 2021
Cloudflare
since Nov 2021
jQuery CDN
since Feb 2022
Ecommerce
Cart Functionality
since Aug 2020
Font scripts
Font Awesome
since Jul 2018
JavaScript frameworks
Vue.js
since Jul 2018
JavaScript graphics
JavaScript libraries
Slick
since Jul 2018
Maps
Google Maps
since Jul 2018
Miscellaneous
Babel
since Mar 2020
Open Graph
since Sep 2022
PaaS
Amazon Web Services
since Aug 2022
Performance
Priority Hints
since Mar 2026
Programming languages
PHP
since Sep 2021
Security
Tag managers
Google Tag Manager
since Apr 2018
UI frameworks
Video players
Web frameworks
CakePHP
since Sep 2021
Web servers
Apache HTTP Server
since Jun 2018
Nginx
since Jul 2018
Audience
- 79% phone
- 19% desktop
- 1% tablet
Japan
South Korea
Taiwan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.82 / 10 · ranked #264,843 of all domains
91 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 175 ms |
| CLS | 0.15 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Akamai
- Weight: 5.6 MB · 190 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.theory.co.jp | 41 |
| store.theory.co.jp | 15 |
Full technology history →
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Recent changes
- detected Priority Hints Mar 2026
- dropped Adobe Audience Manager Aug 2025