What powers 
dh-jac.net?
Last seen Aug 2026 · 10 technologies across 9 categories
JavaScript frameworks
React
since Aug 2022
JavaScript libraries
Miscellaneous
Webpack
since Aug 2022
Photo galleries
PhotoSwipe
since Sep 2022
Programming languages
Node.js
since Aug 2022
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Aug 2022
Web frameworks
Express
since Aug 2022
Web servers
Apache HTTP Server
since Jan 2019
Caddy
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.87 / 10 · ranked #674,413 of all domains
96 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.1 MB · 12 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on OPTAGE OPTAGE Inc. (219.75.130.178)
- DNS: Onamae.com
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 492,838, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ehon.dh-jac.net | 8 |
| www.dh-jac.net | 2 |