📄WHOIS
DELTA Fiber Nederland B.V. · registered 30 years ago
🌐DNS
2 A · 4 MX · 2 NS · 1 SOA · 7 TXT · 2 AAAA
🔒SSL/TLS
Google Trust Services · TLSv1.3 · expires in 50d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: Cloudflare · Email: Self-hosted · Cloudflare
📡HTTP
1 redirect → 403 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (150/215) · 1 critical · 2 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
B (70/100) · 4 MX · 44 IPs · 28 issue(s)
🔍Subdomains
5 found · 112 answered — email, mail, smtp, www, www2