What powers 
japantopleague.jp?
Last seen Oct 2026 · 17 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CMS
microCMS
since Oct 2026
JavaScript frameworks
JavaScript libraries
Swiper
since Nov 2025
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Nov 2025
PaaS
Vercel
since Nov 2025
Performance
Priority Hints
since Nov 2025
Programming languages
Node.js
since Nov 2025
Security
HSTS
since Nov 2025
Tag managers
Google Tag Manager
since Nov 2025
UI frameworks
Webmail
Google Workspace
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 56% phone
- 44% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #364,351 of all domains
73 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Vercel
- Weight: 1.7 MB · 90 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Japan Top League Alliance
- Founded: 2005
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: Muumuu Domain
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 548,982, 2 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
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Recent changes
- detected microCMS Oct 2026
- dropped Facebook Login Dec 2025
- dropped Google Hosted Libraries Dec 2025
- dropped jQuery Dec 2025
- dropped MySQL Dec 2025
- dropped Nginx Dec 2025
- dropped PHP Dec 2025
- dropped Slick Dec 2025
- dropped Twitter Dec 2025
- dropped Twitter Ads Dec 2025
- dropped WordPress Dec 2025