hctb.dk DNS records

🖥️ Nameservers2 records 26ms

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 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.228.33.195	600s	188.228.33.195.dynamic.altibox.net	AS29695	Lyse Tele	188.228.32.0/20	🇩🇰 Denmark	Give

📧 MX Records2 records 85ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	hctb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca09:: 2a01:111:f403:ca09::7 52.101.68.10 52.101.68.3 52.101.73.12 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am4pr0401cu00104.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
20	21600s	backup-mx.post.tele.dk	80.160.77.115	backup-mx2.post.tele.dk	AS3292 TDC Holding A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.99.204.168

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 310ms

TXT Record
MS=ms49221713
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (hctb.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)

🔐 DNSSEC208ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080601
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

26ms

A

85ms

MX

85ms

AAAA

91ms

TXT

310ms

CAA

76ms

HTTPS

65ms

TLSA

8139ms

SOA

0ms

MTA-STS

67ms

DNSSEC

208ms

SRV

104ms

Total

9251ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-08 02:43:24	9251ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-15 02:20:25	7386ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-09 05:33:31	2168ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-03 21:04:30	2606ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-02 10:47:21	2033ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-22 21:54:29	1000ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 11:07:53	1071ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 11:07:29	627ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 11:02:39	1535ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 10:59:38	1086ms	2 NS 1 A 2 MX	🔒 Secure	View