gsb.dk

📜 Historical scan 2026-10-01 04:31:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gsb.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.4.208.59 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by gsb-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 44ms

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 35ms

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 Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	gsb-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::b 2a01:111:f403:ca21::c 2a01:111:f403:ca48::12 52.101.103.36 52.101.181.153 52.101.185.21 52.101.91.21	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-matpr05cu00105.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 → 40.104.116.56
🔶 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 Records#

4 records 163ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 09:08:58

www CNAME	gsb.dk (all on gsb.dk) → 46.4.208.59 (AS24940)
www vs bare domain	Same network gsb.dk: 46.4.208.59 (AS24940) www.gsb.dk: 46.4.208.59 (AS24940)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u113300111.wl112.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u113300111.wl112.sendgrid.net	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: 4/10 · policy: -all

No problems found

🔏 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)

🔐 DNSSEC#

85ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026091001
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

44ms

35ms

39ms

AAAA

46ms

TXT

163ms

CAA

45ms

HTTPS

38ms

TLSA

603ms

SOA

40ms

MTA-STS

70ms

DNSSEC

85ms

SRV

64ms

Total

1172ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 09:08:58	1044ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 04:31:22 shown	1172ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 06:39:36	790ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 13:22:59	1051ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 02:50:30	1155ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-05 04:56:05	1712ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 11:57:45	1460ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 03:46:08	2545ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 15:34:04	5448ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 19:12:06	1560ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 02:26:01	9285ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 11:25:00	2847ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:25:43	923ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:18:42	1373ms	2 NS 1 A 1 MX	🔒 Secure