What powers npojzk.net?
Last seen Oct 2026 · 20 technologies across 15 categories
Analytics
Caching
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
UI frameworks
Web servers
WordPress plugins
WordPress themes
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.69 / 10 · ranked #5,005,628 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.6 MB · 67 requests
- WordPress theme: lightning-pro · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- NPO法人 学習塾全国連合協議会｜NPO塾全協
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (49.212.180.109)
- DNS: Sakura Internet
- Email: npojzk.net
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 17,852,592
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted