📄WHOIS
Domena.pl sp. z o.o. · registered 31 years ago · expires 12/31/2031
🌐DNS
1 A · 3 MX · 6 NS · 1 PTR · 1 SOA · 10 TXT
🔒SSL/TLS
Hellenic Academic and Research Institutions CA · TLSv1.2 · expires in 149d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: University of Warsaw · Email: Google Workspace
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (155/225) · 1 critical · 3 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A (91/100) · 3 MX · 6 IPs · 2 issue(s)
🔍Subdomains
8 found · 113 answered — en, m, monitor, ns2, ns3, vpn +2 more