What powers ysn21.jp?
Last seen Jun 2026 · 42 technologies across 23 categories
Advertising
Twitter Ads
since Jun 2021
Analytics
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Feb 2022
jsDelivr
since Dec 2020
Microsoft Ajax Content Delivery Network
since Feb 2022
CMS
Google Sites
since Aug 2022
Databases
MySQL
since Jan 2019
Editors
DreamWeaver
since Jan 2019
FrontPage
since Aug 2018
Font scripts
Hosting
Sakura Internet
since Aug 2023
JavaScript frameworks
JavaScript libraries
Closure Library
since Oct 2023
Slick
since May 2020
Maps
Google Maps
since Dec 2022
Miscellaneous
Operating systems
Red Hat
since Jan 2019
Programming languages
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Video players
YouTube
since Mar 2020
Web server extensions
Web servers
Apache HTTP Server
since Aug 2018
Nginx
since Oct 2023
Webmail
Google Workspace
since Apr 2024
Widgets
Twitter
since Jan 2019
WordPress plugins
Jetpack
since Feb 2022
WordPress themes
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 73% desktop
- 27% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
5.83 / 10 · ranked #125,386 of all domains
162 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Google
- Weight: 12.3 MB · 181 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.iwakunisogo-h.ysn21.jp | 17 |
| www.ysn21.jp | 17 |
| www.yamaguchi-th.ysn21.jp | 11 |
| www.ohtsu-h.ysn21.jp | 8 |
| www.suisan-h.ysn21.jp | 8 |
| www.center.g.ysn21.jp | 7 |
| www.hagi-nh.ysn21.jp | 7 |
| www.mineseiryo-h.ysn21.jp | 7 |
| www.saikyo-h.ysn21.jp | 7 |
| www.tabuse-at.ysn21.jp | 7 |
| www.y-minami-s.ysn21.jp | 7 |
| www.yama-labo.ysn21.jp | 7 |
| www.yunan-h.ysn21.jp | 7 |
| www.futaba.ysn21.jp | 6 |
| www.hagi-ct.ysn21.jp | 6 |
| www.hagi-h.ysn21.jp | 6 |
| www.hofu-ct.ysn21.jp | 6 |
| www.hofu-sh.ysn21.jp | 6 |
| www.hofunishi-h.ysn21.jp | 6 |
| www.iwakuni-c.ysn21.jp | 6 |
| www.iwakuni-s.ysn21.jp | 6 |
| www.iwakuni-t.ysn21.jp | 6 |
| www.minami-h.ysn21.jp | 6 |
| www.ohtsuryokuyou-h.ysn21.jp | 6 |
Full technology history →
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Recent changes
- detected Closure Library Jan 2026