What powers 
a-quad.jp?
Last seen Sep 2026 · 4 technologies across 4 categories
Analytics
Google Analytics
since Feb 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Security
Imperva
since Jun 2023
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
Policy unknown
Audience
- 51% phone
- 49% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.28 / 10 · ranked #216,931 of all domains
101 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Incapsula
- Weight: 1.6 MB · 65 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Imperva (Incapsula) (45.60.160.86)
- DNS: d-53.info
- Email: securemx.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: GlobalSign, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 2,590,065, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| a-quad.jp | 4 |
| www.a-quad.jp | 4 |