gsb.dk DNS records

🖥️ Nameservers2 records 36ms

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
46.4.208.59	600s	pro02.azehosting.net	AS24940	Hetzner Online GmbH	46.4.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	gsb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::d 2a01:111:f403:ca09::9 2a01:111:f403:ca48::8 52.101.103.137 52.101.68.18 52.101.73.28 52.101.73.6	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am6pr04cu00306.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
🔶 Autoconfig	gsb.dk → 46.4.208.59

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 190ms

TXT Record
google-site-verification=fnQCfYuWpMqMhGo65-jywqosdjS2Jjoph4tv3txO8lY
MS=ms26459155
UFC-4A2-2O1
v=spf1 include:spf.protection.outlook.com include:spf.azehosting.net include:_spf.google.com -all

✉️ SPF

Policy	Record (gsb.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.azehosting.net include:_spf.google.com -all

📨 DMARC

Policy	Record (_dmarc.gsb.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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
CNAME	_acme-challenge.gsb.dk	gsb.dk

🔗 TLSA / DANE

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

🔐 DNSSEC107ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082707
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

36ms

A

43ms

MX

42ms

AAAA

35ms

TXT

190ms

CAA

48ms

HTTPS

35ms

TLSA

596ms

SOA

0ms

MTA-STS

61ms

DNSSEC

107ms

SRV

68ms

Total

1460ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:57:45	1460ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 03:46:08	2545ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 15:34:04	5448ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 19:12:06	1560ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 02:26:01	9285ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 11:25:00	2847ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 04:25:43	923ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 09:18:42	1373ms	2 NS 1 A 1 MX	🔒 Secure	View