maildefender.dk
Last scanned: 2026-08-26 23:42:52  ·  2566ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   47ms
NameserverIP addressesPTRASN / ISP
ns-cloud-d1.googledomains.com 2001:4860:4802:32::6d
216.239.32.109		 ns-cloud-d1.googledomains.com
ns-cloud-d1.googledomains.com		 AS15169 Google LLC
AS15169 Google LLC
ns-cloud-d2.googledomains.com 2001:4860:4802:34::6d
216.239.34.109		 ns-cloud-d2.googledomains.com
ns-cloud-d2.googledomains.com		 AS15169 Google LLC
AS15169 Google LLC
ns-cloud-d3.googledomains.com 2001:4860:4802:36::6d
216.239.36.109		 ns-cloud-d3.googledomains.com
ns-cloud-d3.googledomains.com		 AS15169 Google LLC
AS15169 Google LLC
ns-cloud-d4.googledomains.com 2001:4860:4802:38::6d
216.239.38.109		 ns-cloud-d4.googledomains.com
ns-cloud-d4.googledomains.com		 AS15169 Google LLC
AS15169 Google LLC
🌍 A Records1 records   2043ms
IPTTLPTRASNISP / OrgCIDRCountryCity
116.203.43.243 298s static.243.43.203.116.clients.your-server.de AS24940 Hetzner Online GmbH 116.202.0.0/15 🇩🇪 Germany Nuremberg
📧 MX Records1 records   52ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mx.mailfirewall.dk 89.188.78.64
94.231.106.10
94.231.106.12		 node3.spamfilter.io
node1.spamfilter.io
node2.spamfilter.io		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   242ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (maildefender.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.maildefender.dk)
p=reject v=DMARC1; p=reject; rua=mailto:btpv5zey@ag.dmarcian.com; ruf=mailto:btpv5zey@fr.dmarcian.com;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC76ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial1
Primary NS (MNAME)ns-cloud-d1.googledomains.com
Responsible (RNAME)cloud-dns-hostmaster@google.com
Refresh21600s
Retry3600s
Expire259200s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
47ms
A
2043ms
MX
52ms
AAAA
72ms
TXT
242ms
CAA
63ms
HTTPS
69ms
TLSA
186ms
SOA
0ms
MTA-STS
72ms
DNSSEC
76ms
SRV
72ms
Total
2566ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 23:42:52 2566ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-28 10:50:21 1167ms 4 NS 1 A 1 MX 🔒 Secure View
2026-06-17 14:55:14 2332ms 4 NS 1 A 1 MX 🔒 Secure View
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