What powers 
irfu.se?
Last seen Mar 2025 · 3 technologies across 3 categories
Analytics
Google Analytics
since Mar 2025
Programming languages
Java
since Mar 2025
Security
HSTS
since Mar 2025
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
4.77 / 10 · ranked #269,527 of all domains
64 referring domains · OpenPageRank
Infrastructure
- Hosted on UUNet Uppsala University (130.238.30.10)
- DNS: irf.se
- Email: irfu.se
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed, CAA, MTA-STS
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 498,244, 16 hosts
- Verified with: Google, Have I Been Pwned
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted