gc.dk

📜 Historical scan 2026-06-17 09:35:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gc.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 26 March 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.61 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by gc-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#

4 records 131ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	—	—	—
ns2.simply.com	—	—	—
ns3.simply.com	—	—	—
ns4.simply.com	—	—	—

🌍 A Records#

1 records 129ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.20.205.61	—	linux385.unoeuro.com	AS48854	team.blue Denmark A/S	185.20.204.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 127ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	gc-dk.mail.protection.outlook.com	52.101.68.21 52.101.68.27 52.101.68.32 52.101.73.12	mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com	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 193ms

TXT Record
MS=ms82168669
v=spf1 ip4:185.221.37.134 ip4:195.201.83.226 include:spf.azehosting.net ip4:78.46.96.236 +a +mx +ip4:138.201.239.158 +ip4:78.47.179.158 +ip4:85.218.179.41 +ip4:185.20.205.61 +include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (gc.dk)
~all (soft fail)	v=spf1 ip4:185.221.37.134 ip4:195.201.83.226 include:spf.azehosting.net ip4:78.46.96.236 +a +mx +ip4:138.201.239.158 +ip4:78.47.179.158 +ip4:85.218.179.41 +ip4:185.20.205.61 +include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.gc.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-11 11:03:20

www	185.20.205.61 (AS48854) (address records, no CNAME)
www vs bare domain	Same network gc.dk: 185.20.205.61 (AS48854) www.gc.dk: 185.20.205.61 (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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

254ms

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

🏷️ SOA#

119ms

Field	Value
Serial	2025042300
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 2026-10-11 00:41:31

Field	Value
Registrar	Simply.com A/S
Registered	1997-03-26
Expires	2027-03-31 (163d)

📋 WHOIS#

⏱️ Lookup Timing#

131ms

129ms

127ms

AAAA

126ms

TXT

193ms

CAA

124ms

HTTPS

128ms

TLSA

103ms

SOA

119ms

MTA-STS

132ms

DNSSEC

254ms

SRV

0ms

Total

802ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 10:20:54	1226ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:59:28	914ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-20 18:57:45	607ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:35:52 shown	802ms	4 NS 1 A 1 MX	🔒 Secure