os.dk
📜 Historical scan 2026-08-02 22:40:05  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   56ms
NameserverIP addressesPTRASN / ISP
ns1.eurodns.com 199.167.66.107
2610:1c8:b002::107		 ns1.eurodns.com
ns1.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns2.eurodns.com 104.37.178.107
2610:1c8:b001::107		 ns2.eurodns.com
ns2.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns3.eurodns.com 199.167.66.108
2610:1c8:b002::108		 ns3.eurodns.com
ns3.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns4.eurodns.com 104.37.178.108
2610:1c8:b001::108		 ns4.eurodns.com
ns4.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
🌍 A Records3 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
18.192.246.145 600s ec2-18-192-246-145.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 18.192.0.0/13 🇩🇪 Germany Frankfurt am Main
18.193.144.171 600s ec2-18-193-144-171.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 18.192.0.0/13 🇩🇪 Germany Frankfurt am Main
3.125.131.179 600s ec2-3-125-131-179.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 3.96.0.0/11 🇩🇪 Germany Frankfurt am Main
📧 MX Records1 records   50ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s fpo9.mail.dk 34.140.124.121 121.124.140.34.bc.googleusercontent.com AS396982 Google LLC
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   294ms
TXT Record
v=spf1 include:mail.dk ~all
✉️ SPF
PolicyRecord (os.dk)
~all (soft fail) v=spf1 include:mail.dk ~all
📨 DMARC
PolicyRecord (_dmarc.os.dk)
p=reject v=DMARC1; p=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.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)
🔐 DNSSEC144ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026011637
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
56ms
A
43ms
MX
50ms
AAAA
45ms
TXT
294ms
CAA
53ms
HTTPS
44ms
TLSA
8071ms
SOA
0ms
MTA-STS
54ms
DNSSEC
144ms
SRV
96ms
Total
8881ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-19 06:24:25 2645ms 4 NS 3 A 1 MX 🔒 Secure View
2026-08-02 22:40:05 8881ms 4 NS 3 A 1 MX 🔒 Secure View
2026-07-13 03:56:18 9969ms 4 NS 3 A 1 MX 🔒 Secure View
2026-07-11 20:44:39 2255ms 4 NS 3 A 1 MX 🔒 Secure View
2026-06-29 21:34:28 1348ms 4 NS 3 A 1 MX 🔒 Secure View
2026-06-24 07:58:37 1734ms 4 NS 3 A 1 MX 🔒 Secure View
2026-06-18 06:07:41 1298ms 4 NS 3 A 1 MX 🔒 Secure View
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