What powers qr4.nl?
Last seen Apr 2026 · 6 technologies across 5 categories
JavaScript Frameworks
Miscellaneous
Open Graph
since Nov 2022
RSS
since Dec 2022
Rich text editors
Security
HSTS
since Nov 2022
Web Frameworks
Microsoft ASP.NET
since Jan 2016
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Open Page Rank
4.06 / 10 · ranked #528,991 of all domains
38 referring domains · OpenPageRank
Infrastructure
- Hosted on DCLUX-AS Datacenter Luxembourg (80.92.65.214)
- DNS: eurodns.com
- Email: no MX record returned
- Common Crawl link graph: rank 733,042, 4 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.qr4.nl | 5 |
| www.qr4.nl | 4 |