What powers couperin.net?
Last seen Jun 2026 · 17 technologies across 9 categories
CDN
cdnjs
since Nov 2021
Cloudflare
since Jul 2022
CMS
Databases
MySQL
since Sep 2020
JavaScript libraries
SoundManager
since Sep 2020
Swiper
since Sep 2022
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Web servers
LiteSpeed
since Sep 2020
Widgets
FlexSlider
since Sep 2020
WordPress plugins
Litespeed Cache
since Jul 2022
MetaSlider
since Feb 2022
Welcart
since Sep 2020
WP-PageNavi
since Feb 2022
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.20 / 10 · ranked #77,118,757 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 15.7 MB · 56 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.