cem.dk DNS records

🖥️ Nameservers2 records 38ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.85	3600s	webcluster1.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cem-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 2a01:111:f403:ca09::9 52.101.68.5 52.101.73.1 52.101.73.11 52.101.73.8	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.98.16.8

🔷 AAAA Records (IPv6)1 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:aa:6039:538c:36f7	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 221ms

TXT Record
MS=ms38587323
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cem.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)

🔐 DNSSEC137ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081801
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

38ms

A

40ms

MX

33ms

AAAA

45ms

TXT

221ms

CAA

32ms

HTTPS

33ms

TLSA

145ms

SOA

0ms

MTA-STS

60ms

DNSSEC

137ms

SRV

8071ms

Total

9094ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-19 02:30:05	9094ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 21:50:17	2735ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 14:34:06	3906ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 17:51:46	8594ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 18:35:07	5783ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 02:49:09	1254ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:21:27	2216ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 00:36:24	1070ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:16:53	9574ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:08:50	1752ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:08:13	660ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:01:38	545ms	2 NS 1 A 1 MX	🔒 Secure	View