nordstern.dk DNS records

🖥️ Nameservers2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
64.225.83.76	600s	—	AS14061	DigitalOcean, LLC	64.225.0.0/17	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	nordstern-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::7 2a01:111:f403:ca04::f 2a01:111:f403:ca09::24 52.101.68.3 52.101.73.153 52.101.73.16 52.101.73.26	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig	nordstern.dk → 64.225.83.76

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 96ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	1	5061	sipfed.online.lync.com

📝 TXT Records1 records 139ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf_internal.nordstern.dk include:_spf_external.nordstern.dk include:_custspf.one.com include:_spf.elasticemail.com ip4:87.54.52.154 ip4:87.54.52.170 ip4:20.54.248.90 ip4:20.54.248.142 ip4:20.54.250.88 ip4:20.54.250.91 ip4:20.56.17.109 ip4:20.56.18.130 ip4:20.56.18.132 ip4:20.56.18.179 ip4:20.86.17.114 ip4:20.86.17.142 ip4:20.86.17.153 ip4:20.86.17.159 ~all

TXT Record

v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf_internal.nordstern.dk include:_spf_external.nordstern.dk include:_custspf.one.com include:_spf.elasticemail.com ip4:87.54.52.154 ip4:87.54.52.170 ip4:20.54.248.90 ip4:20.54.248.142 ip4:20.54.250.88 ip4:20.54.250.91 ip4:20.56.17.109 ip4:20.56.18.130 ip4:20.56.18.132 ip4:20.56.18.179 ip4:20.86.17.114 ip4:20.86.17.142 ip4:20.86.17.153 ip4:20.86.17.159 ~all

✉️ SPF

Policy	Record (nordstern.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf_internal.nordstern.dk include:_spf_external.nordstern.dk include:_custspf.one.com include:_spf.elasticemail.com ip4:87.54.52.154 ip4:87.54.52.170 ip4:20.54.248.90 ip4:20.54.248.142 ip4:20.54.250.88 ip4:20.54.250.91 ip4:20.56.17.109 ip4:20.56.18.130 ip4:20.56.18.132 ip4:20.56.18.179 ip4:20.86.17.114 ip4:20.86.17.142 ip4:20.86.17.153 ip4:20.86.17.159 ~all

Policy

Record (nordstern.dk)

~all (soft fail)

v=spf1 include:spf.protection.outlook.com include:spf.exclaimer.net include:_spf_internal.nordstern.dk include:_spf_external.nordstern.dk include:_custspf.one.com include:_spf.elasticemail.com ip4:87.54.52.154 ip4:87.54.52.170 ip4:20.54.248.90 ip4:20.54.248.142 ip4:20.54.250.88 ip4:20.54.250.91 ip4:20.56.17.109 ip4:20.56.18.130 ip4:20.56.18.132 ip4:20.56.18.179 ip4:20.86.17.114 ip4:20.86.17.142 ip4:20.86.17.153 ip4:20.86.17.159 ~all

📨 DMARC

Policy	Record (_dmarc.nordstern.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:d8e255d2a48e523@rep.dmarcanalyzer.com; ruf=mailto:d8e255d2a48e523@for.dmarcanalyzer.com; pct=100; fo=1;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.nordstern.dk	nordstern.dk

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC114ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

30ms

A

46ms

MX

32ms

AAAA

29ms

TXT

139ms

CAA

46ms

HTTPS

27ms

TLSA

858ms

SOA

0ms

MTA-STS

44ms

DNSSEC

114ms

SRV

96ms

Total

1418ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 16:34:03	1418ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-02 09:31:07	1388ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 15:34:51	1190ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 01:30:21	2976ms	2 NS 1 A 1 MX	🔒 Secure	View