dfm.dk DNS records

🖥️ Nameservers2 records 58ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.76	43200s	linux201.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dfm-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca09::f 52.101.68.36 52.101.73.153 52.101.73.2 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 110ms

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

📝 TXT Records2 records 182ms

TXT Record
MS=C89A8C311BAE1DF8B933FF3A0565EDA0DDD8CDC7
v=spf1 ip4:87.116.22.145/28 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dfm.dk)
-all (hard fail)	v=spf1 ip4:87.116.22.145/28 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.dfm.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dump@dfm.dk; ruf=mailto:dump@dfm.dk; 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
TXT	_acme-challenge.dfm.dk	UBz5W-66HcZdV5zvGg2J-Npy6e6XH3fdgcoT7MyFwGg

🔗 TLSA / DANE

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

🔐 DNSSEC89ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

58ms

A

43ms

MX

43ms

AAAA

60ms

TXT

182ms

CAA

51ms

HTTPS

69ms

TLSA

626ms

SOA

0ms

MTA-STS

69ms

DNSSEC

89ms

SRV

110ms

Total

1661ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-11 05:03:01	1661ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 22:01:06	4895ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 17:10:39	3034ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 23:52:40	1930ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 08:10:23	1148ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 01:36:23	744ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 07:02:04	829ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 02:35:55	747ms	2 NS 1 A 1 MX	🔒 Secure	View