What powers spring.or.jp?
Last seen Sep 2026 · 7 technologies across 5 categories
CMS
WordPress
since Feb 2019
Databases
MySQL
since Feb 2019
JavaScript libraries
Programming languages
PHP
since Feb 2019
Web servers
Apache HTTP Server
since Feb 2019
Nginx
since Jul 2026
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 58% desktop
- 42% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.54 / 10 · ranked #2,425,326 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 9.5 MB · 16 requests
- WordPress theme: jsma · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Japan Spring Manufacturers Association
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on Xserver (85.131.221.72)
- Email: alpha-prm.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 8,834,443, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| spring.or.jp | 6 |
| www.spring.or.jp | 6 |