What powers penspinning.jp?
Last seen Aug 2026 · 40 technologies across 21 categories
Advertising
Google AdSense
since Apr 2019
Analytics
CDN
Google Cloud CDN
since Mar 2024
Google Hosted Libraries
since Feb 2022
CMS
Databases
Font scripts
Google Font API
since Apr 2019
Twitter Emoji (Twemoji)
since Apr 2019
IaaS
Google Cloud
since Mar 2024
JavaScript frameworks
JavaScript libraries
Swiper
since Sep 2022
Miscellaneous
Page builders
STUDIO
since Mar 2024
WordPress Block Editor
since Sep 2024
Performance
Google Cloud Trace
since Jun 2026
Priority Hints
since Aug 2023
Programming languages
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Sep 2021
UI frameworks
Animate.css
since Apr 2019
Video players
YouTube
since Apr 2019
Web servers
Apache HTTP Server
since Apr 2019
Webmail
Google Workspace
since Apr 2023
WordPress plugins
Jetpack
since Feb 2022
WordPress themes
Lightning
since Aug 2023
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.03 / 10 · ranked #3,516,150 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 79 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| waza.penspinning.jp | 21 |
| npf2024.penspinning.jp | 18 |
| jppc.penspinning.jp | 15 |
| npf2025.penspinning.jp | 15 |
| npf2026.penspinning.jp | 15 |
| penspinning.jp | 14 |