gc-as.dk

📜 Historical scan 2026-06-17 09:27:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gc-as.dk is a .dk domain served by 2 nameservers (kira.ns.cloudflare.com, randy.ns.cloudflare.com). It was registered on 10 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.14.25 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by gcas-dk0e.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 51ms

Nameserver	IP addresses	PTR	ASN / ISP
kira.ns.cloudflare.com	—	—	—
randy.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.14.25	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.160	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	gcas-dk0e.mail.protection.outlook.com	52.101.68.10 52.101.68.12 52.101.68.18 52.101.73.12	mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00302.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)#

2 records 58ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:e19	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:9da0	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 58ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.14.25,172.67.157.160 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:e19,2606:4700:3031::ac43:9da0

📝 TXT Records#

1 records 128ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf-eu.letsignit.com include:spf-ca.letsignit.com include:spf-us.letsignit.com -all

✉️ SPF#

Policy	Record (gc-as.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf-eu.letsignit.com include:spf-ca.letsignit.com include:spf-us.letsignit.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 2026-10-09 00:47:37

www	104.21.14.25 172.67.157.160 2606:4700:3035::6815:e19 2606:4700:3037::ac43:9da0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gc-as.dk: 104.21.14.25 172.67.157.160 2606:4700:3035::6815:e19 2606:4700:3037::ac43:9da0 (AS13335) www.gc-as.dk: 104.21.14.25 172.67.157.160 2606:4700:3035::6815:e19 2606:4700:3037::ac43:9da0 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-gcas-dk0e._domainkey.gcasdk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-gcas-dk0e._domainkey.gcasdk.onmicrosoft.com	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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

202ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

54ms

Field	Value
Serial	2405056991
Primary NS (MNAME)	kira.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-22 13:09:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-10-10
Expires	2026-12-31 (67d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

51ms

64ms

56ms

AAAA

58ms

TXT

128ms

CAA

74ms

HTTPS

58ms

TLSA

488ms

SOA

54ms

MTA-STS

43ms

DNSSEC

202ms

SRV

0ms

Total

3224ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 00:47:37	1517ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 00:45:19	1133ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 10:07:32	1540ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 10:41:45	1783ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 10:02:34	1818ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-05 20:10:26	2146ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 00:47:34	2405ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 02:39:12	1261ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 07:51:30	1858ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 09:27:32 shown	3224ms	2 NS 2 A 1 MX	🔓 Insecure