What powers 41copy.jp?
Last seen Jun 2026 · 21 technologies across 15 categories
A/B Testing
Google Optimize
since Jul 2021
Optimizely
since Jan 2020
Analytics
CDN
Google Hosted Libraries
since Feb 2022
CMS
WordPress
since Aug 2018
Databases
MySQL
since Aug 2018
Font scripts
JavaScript frameworks
Riot
since Sep 2018
JavaScript libraries
Slick
since Jan 2019
Underscore.js
since Sep 2018
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
PHP
since Aug 2018
SEO
Tag managers
Google Tag Manager
since Aug 2018
Video players
YouTube
since Jan 2024
Web servers
Apache HTTP Server
since Aug 2018
Audience
- 54% desktop
- 46% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.22 / 10 · ranked #3,054,942 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 6.8 MB · 211 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Jul 2026.