nkn.dk DNS records

🖥️ Nameservers2 records 27ms

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 Records4 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	nkn-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca09:: 2a01:111:f403:ca09::7 2a01:111:f403:ca09::a 52.101.68.21 52.101.73.15 52.101.73.8 52.101.91.159	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com mail-matpr04cu00207.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 45ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 105ms

TXT Record
MS=ms28335835
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (nkn.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090601
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

27ms

A

29ms

MX

32ms

AAAA

32ms

TXT

105ms

CAA

35ms

HTTPS

24ms

TLSA

831ms

SOA

0ms

MTA-STS

46ms

DNSSEC

99ms

SRV

45ms

Total

1352ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-07 10:27:50	1352ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-26 20:10:31	957ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-17 13:04:51	7775ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-08-09 01:51:22	1734ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-07-23 08:52:27	17072ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-07-09 04:58:02	1358ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-19 15:33:26	830ms	2 NS 4 A 1 MX	🔒 Secure	View
2026-06-17 13:57:24	2965ms	2 NS 4 A 1 MX	🔒 Secure	View