📄WHOIS
Gransy s.r.o. d/b/a subreg.cz · registered 7 years ago · ⚠ expires in 4 days
🌐DNS
1 A · 1 MX · 3 NS · 1 PTR · 1 SOA · 3 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 75d · 2 SANs
✉️Email Auth
SPF ✗ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: Contabo GmbH · Email: Self-hosted · Apache
📡HTTP
1 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
C (138/225) · 2 critical · 3 high
📈Deliverability
A (85/100) · 1 MX · 1 IPs · 4 issue(s)
🔍Subdomains
12 found · 113 answered — calendar, dns, en, gitlab, m, meet +6 more