What powers 
ndsa.or.jp?
Last seen Sep 2026 · 12 technologies across 10 categories
Analytics
Google Analytics
since Apr 2021
Microsoft Clarity
since Sep 2022
CDN
Google Hosted Libraries
since Jul 2022
CMS
WordPress
since Dec 2021
Databases
MySQL
since Dec 2021
Hosting
Xserver
since Sep 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Dec 2021
Video players
YouTube
since Nov 2022
Web servers
Nginx
since Apr 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 52% desktop
- 48% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.62 / 10 · ranked #804,363 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.9 MB · 71 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (202.226.37.182)
- DNS: Xserver
- Email: ndsa.or.jp
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 25,639,355
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted