hc.dk DNS records

🖥️ Nameservers2 records 80ms

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 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.249.10.17	3600s	—	AS39642	Sinal A/S	89.249.0.0/20	🇩🇰 Denmark	Aarhus

📧 MX Records1 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	hc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 2a01:111:f403:ca48::c 52.101.68.16 52.101.68.27 52.101.73.11 52.101.73.30	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00306.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

📝 TXT Records3 records 219ms

TXT Record
google-site-verification=3CdCMjhkHSuoys6Nx-TU284ISuasDx2uhJpOUvkMrt8
MS=ms73642068
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.hc.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:aln@hc.dk; ruf=mailto:aln@hchgruppen.dk; fo=1; 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)

🔐 DNSSEC99ms

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

🏷️ SOA87ms

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

80ms

A

76ms

MX

65ms

AAAA

83ms

TXT

219ms

CAA

59ms

HTTPS

58ms

TLSA

172ms

SOA

87ms

MTA-STS

87ms

DNSSEC

99ms

SRV

219ms

Total

5155ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 21:32:10	5155ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 07:43:05	1807ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 16:34:01	1823ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 09:51:49	1760ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 21:48:15	2648ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 19:33:41	758ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-20 19:11:35	1299ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 18:12:57	925ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:06:46	812ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 11:00:37	1283ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:54:27	1670ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:53:39	1092ms	2 NS 1 A 1 MX	🔒 Secure	View