What powers def-4.com?
Last seen Jun 2026 · 38 technologies across 22 categories
Advertising
Google AdSense
since Apr 2018
Analytics
Google Analytics
since Apr 2018
Authentication
Facebook Login
since Jul 2021
Google Sign-in
since Feb 2021
Cache Tools
WordPress Super Cache
since Apr 2018
Caching
QUIC.cloud
since Apr 2023
CDN
Cloudflare
since Jun 2018
CMS
Cookie compliance
Funding Choices
since Oct 2023
Databases
MySQL
since Jun 2018
Font scripts
JavaScript libraries
Miscellaneous
Mobile frameworks
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since Jun 2018
Security
SEO
Tag managers
Google Tag Manager
since Aug 2021
Web servers
LiteSpeed
since Nov 2019
Widgets
WordPress plugins
WordPress themes
Twenty Seventeen
since Feb 2022
Audience
- 63% phone
- 37% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.88 / 10 · ranked #3,908,683 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.2 MB · 150 requests
- WordPress theme: twentyseventeen (child: 17cotheme) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| def-4.com | 31 |
| www.def-4.com | 19 |
Full technology history →
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Recent changes
- dropped Breadcrumb NavXT Feb 2026
- detected Google Font API Nov 2025
- dropped Snowplow Analytics Sep 2025