gbst.dk

📜 Historical scan 2026-09-19 02:38:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gbst.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 November 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.20 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by gbst-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 46ms

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 Records#

1 records 2040ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.20	3598s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	gbst-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 2a01:111:f403:ca21::a 2a01:111:f403:ca48::8 52.101.185.114 52.101.68.18 52.101.73.123 52.101.73.153	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr05cu00401.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 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:a3:6e88:4fa9:58b9	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 Records#

2 records 168ms

TXT Record
MS=ms78325144
v=spf1 include:_custspf.one.com include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.gbst.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@gbst.dk

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 16:11:16

www	46.30.213.20 2a02:2350:5:10a:a3:6e88:4fa9:58b9 (AS51468) (address records, no CNAME)
www vs bare domain	Same network gbst.dk: 46.30.213.20 2a02:2350:5:10a:a3:6e88:4fa9:58b9 (AS51468) www.gbst.dk: 46.30.213.20 2a02:2350:5:10a:a3:6e88:4fa9:58b9 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-gbst-dk._domainkey.brandeftersyn.a-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-gbst-dk._domainkey.brandeftersyn.a-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

70ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2026091401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 17:40:44

Field	Value
Registrar	ONE.COM A/S
Registered	2021-11-20
Expires	2026-11-19 (33d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

2040ms

51ms

AAAA

44ms

TXT

168ms

CAA

42ms

HTTPS

42ms

TLSA

506ms

SOA

36ms

MTA-STS

54ms

DNSSEC

70ms

SRV

73ms

Total

6909ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 16:11:16	1085ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 23:26:01	1821ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 08:05:48	802ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 18:54:40	1125ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 02:38:16 shown	6909ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-18 14:42:46	1944ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 21:42:39	1191ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 09:07:41	2351ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-19 03:40:17	7212ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 17:15:33	2056ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 01:23:09	2505ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:55:00	1168ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:31:06	922ms	2 NS 1 A 1 MX	🔒 Secure