What powers 
spa-u.net?
Last seen Sep 2026 · 6 technologies across 5 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Tag managers
Google Tag Manager
since May 2023
Web servers
Apache HTTP Server
since Jan 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 78% phone
- 19% desktop
- 4% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.72 / 10 · ranked #753,223 of all domains
118 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 9.1 MB · 81 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on SNI-JP NetComBB Co.,Ltd. (61.7.0.255)
- Email: no MX record returned
- Email security: SPF (soft fail)
- SSL: JPRS, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,301,775, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted