gsn.dk

📜 Historical scan 2026-06-17 10:02:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gsn.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 14 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.173 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by gsn-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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#

3 records 158ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 153ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.173	—	linux284.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 143ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	gsn-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::6 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.15 52.101.68.25 52.101.73.15 52.101.73.2	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr07cu00302.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 4170ms

TXT Record
MS=ms45565644
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (gsn.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 01:31:52

www	93.191.156.173 (AS48854) (address records, no CNAME)
www vs bare domain	Same network gsn.dk: 93.191.156.173 (AS48854) www.gsn.dk: 93.191.156.173 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

291ms

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

🏷️ SOA#

127ms

Field	Value
Serial	2026061600
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-03 16:20:17

Field	Value
Registrar	Simply.com A/S
Registered	2021-02-14
Expires	2027-02-28 (132d)

📋 WHOIS#

⏱️ Lookup Timing#

158ms

153ms

143ms

AAAA

118ms

TXT

4170ms

CAA

133ms

HTTPS

119ms

TLSA

215ms

SOA

127ms

MTA-STS

108ms

DNSSEC

291ms

SRV

0ms

Total

5016ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 15:54:53	865ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 15:44:50	662ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 14:31:06	1302ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 04:54:42	1399ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-15 03:17:37	1138ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-21 00:29:08	958ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 04:23:20	1172ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:02:18 shown	5016ms	3 NS 1 A 1 MX	🔒 Secure