hc3.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 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.228	3600s	webcluster2.webpod18-cph3.g1i.one	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	hc3-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca09::b 2a01:111:f403:ca09::f 52.101.68.15 52.101.68.16 52.101.68.32 52.101.73.8	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db3pr0202cu00200.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 → 40.98.16.43

🔷 AAAA Records (IPv6)1 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:108:8023:e9e4:1c2b:1e51	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 161ms

TXT Record
MS=ms83293245
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (hc3.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)

🔐 DNSSEC148ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080201
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

56ms

MX

54ms

AAAA

56ms

TXT

161ms

CAA

53ms

HTTPS

53ms

TLSA

131ms

SOA

0ms

MTA-STS

49ms

DNSSEC

148ms

SRV

16044ms

Total

16869ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-03 18:31:26	16869ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 19:21:37	2359ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 12:15:04	2092ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 04:49:31	1444ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 16:44:43	3517ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 16:24:34	1173ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 22:02:10	694ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:56:07	1253ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:53:02	1380ms	2 NS 1 A 1 MX	🔒 Secure	View