os.dk DNS records

🖥️ Nameservers4 records 88ms

Nameserver	IP addresses	PTR	ASN / 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 118ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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 117ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	267s	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 453ms

TXT Record
v=spf1 include:mail.dk ~all

✉️ SPF

Policy	Record (os.dk)
~all (soft fail)	v=spf1 include:mail.dk ~all

📨 DMARC

Policy	Record (_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)

🔐 DNSSEC248ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026011640
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

88ms

A

118ms

MX

117ms

AAAA

117ms

TXT

453ms

CAA

109ms

HTTPS

131ms

TLSA

178ms

SOA

0ms

MTA-STS

162ms

DNSSEC

248ms

SRV

178ms

Total

2645ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
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