cdkom.dk DNS records

🖥️ Nameservers2 records 62ms

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 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.251	3600s	vps2.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cdkom-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::3 2a01:111:f403:ca09::6 2a01:111:f403:ca09::c 52.101.68.21 52.101.73.1 52.101.73.2 52.101.73.24	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as8pr05cu00300.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 105ms

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

📝 TXT Records2 records 165ms

TXT Record
MS=ms30689956
v=spf1 include:spf.protection.outlook.com include:spf.hosit.dk ip4:139.112.164.40 ip4:139.112.164.41 -all

✉️ SPF

Policy	Record (cdkom.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.hosit.dk ip4:139.112.164.40 ip4:139.112.164.41 -all

📨 DMARC

Policy	Record (_dmarc.cdkom.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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)

🔐 DNSSEC87ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080301
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

62ms

A

51ms

MX

55ms

AAAA

47ms

TXT

165ms

CAA

59ms

HTTPS

57ms

TLSA

403ms

SOA

0ms

MTA-STS

75ms

DNSSEC

87ms

SRV

105ms

Total

1364ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-08 06:58:52	1364ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 06:56:10	7127ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 16:16:31	1676ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 04:57:17	1147ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 21:18:30	796ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 19:56:26	2595ms	2 NS 1 A 1 MX	🔒 Secure	View