📄WHOIS
Mainstream Public Cloud Services d.o.o. · expires 9/5/2027
🌐DNS
1 A · 5 MX · 4 NS · 1 SOA · 4 TXT
🔒SSL/TLS
DigiCert Inc · TLSv1.2 · expires in 135d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗
💻Tech Stack
Host: Mainstream doo Beograd · Email: Google Workspace · nginx · PHP
📡HTTP
3 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (155/225) · 1 critical · 3 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
B (74/100) · 5 MX · 10 IPs · 4 issue(s)
🔍Subdomains
2 found · 113 answered — mail, www