What powers njsf.net?
Last seen Sep 2026 · 40 technologies across 21 categories
Advertising
Twitter Ads
since Jul 2021
Affiliate programs
Analytics
Quantcast Measure
since Apr 2022
Authentication
Facebook Login
since Jul 2021
CDN
cdnjs
since Apr 2022
Cloudflare
since Jul 2022
Google Hosted Libraries
since Apr 2022
jsDelivr
since Sep 2021
CMS
WordPress
since Jan 2019
Comment systems
Livefyre
since Jan 2024
Databases
MySQL
since Jan 2019
Ecommerce
Cart Functionality
since Aug 2020
Font scripts
JavaScript libraries
Maps
Leaflet
since Jan 2024
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Aug 2023
Programming languages
TypeScript
since Jan 2024
Security
Cloudflare Bot Management
since Mar 2025
Web servers
Apache HTTP Server
since Jan 2019
Widgets
FullCalendar
since Jan 2024
Twitter
since Jun 2020
WordPress plugins
WordPress themes
Twenty Nineteen
since Aug 2022
Twenty Seventeen
since Feb 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 84% phone
- 16% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.86 / 10 · ranked #4,009,793 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.0 MB · 91 requests
- WordPress theme: twentyseventeen (child: twentyseventeen-child) · all themes
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GMO Internet (157.7.107.175)
- DNS: Muumuu Domain
- Email: Lolipop
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 827,880, 17 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.njsf.net | 28 |
| tennis.njsf.net | 19 |
| njsf.net | 18 |
| wsaj.njsf.net | 18 |
| aichi-bad.njsf.net | 16 |
| hiroba.njsf.net | 16 |
| aichi.njsf.net | 10 |
| badminton.njsf.net | 10 |
| miyagi.njsf.net | 10 |
| gifuttc.njsf.net | 9 |
| kochi-tennis.njsf.net | 9 |
| aichittc.njsf.net | 4 |
| miettc.njsf.net | 2 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Lozad.js Jun 2026
- detected Cloudflare Bot Management May 2026
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Cloudflare Bot Management Nov 2025