headof.dk DNS records

🖥️ Nameservers2 records 25ms

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 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.170	3600s	webcluster2.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	headof-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::6 2a01:111:f403:ca09::b 2a01:111:f403:ca09::d 52.101.103.140 52.101.68.32 52.101.68.39 52.101.73.19	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.24

🔷 AAAA Records (IPv6)1 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:8052:cefa:9eb1:3fcf	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 127ms

TXT Record
MS=ms19175935
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (headof.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)

🔐 DNSSEC103ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083101
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

25ms

A

29ms

MX

31ms

AAAA

35ms

TXT

127ms

CAA

30ms

HTTPS

32ms

TLSA

324ms

SOA

0ms

MTA-STS

40ms

DNSSEC

103ms

SRV

95ms

Total

1342ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 00:26:43	1342ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 18:13:02	871ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 23:42:52	9985ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 12:24:26	759ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 00:23:33	677ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 02:56:20	805ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 23:26:44	1071ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 01:19:23	1183ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 10:52:45	2256ms	2 NS 1 A 1 MX	🔒 Secure	View