dk-gbc.dk

📜 Historical scan 2026-08-27 13:17:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dk-gbc.dk is a .dk domain served by 2 nameservers (hugh.ns.cloudflare.com, lauryn.ns.cloudflare.com). It was registered on 29 April 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.74.76 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by dkgbc-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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
hugh.ns.cloudflare.com	108.162.193.117 172.64.33.117 173.245.59.117 2606:4700:58::adf5:3b75 2803:f800:50::6ca2:c175 2a06:98c1:50::ac40:2175	hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lauryn.ns.cloudflare.com	108.162.194.22 162.159.38.22 172.64.34.22 2606:4700:50::a29f:2616 2803:f800:50::6ca2:c216 2a06:98c1:50::ac40:2216	lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.74.76	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.200.115	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	dkgbc-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca09::28 2a01:111:f403:ca09::c 52.101.68.21 52.101.68.8 52.101.73.16 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.40
🔶 Autoconfig	172.67.200.115

🔷 AAAA Records (IPv6)#

2 records 26ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4a4c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:c873	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 36ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.74.76,172.67.200.115 ech=AEX+DQBBMwAgACAgxhomKHehEW58NJqh4dTyKWEWuazzuXDGTTnRaCl5ZQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4a4c,2606:4700:3033::ac43:c873

🔌 SRV Records#

1 records 70ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 181ms

TXT Record
google-site-verification=Dkx01H8PdYA_wFcj4KofjDEFVd77krPz9Y7c9t8QtAE
v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:_spf.createsend.com ~all

✉️ SPF#

Policy	Record (dk-gbc.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:_spf.createsend.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 2026-10-08 16:24:58

www	104.21.74.76 172.67.200.115 2606:4700:3030::6815:4a4c 2606:4700:3033::ac43:c873 (AS13335) (address records, no CNAME)
www vs bare domain	Same network dk-gbc.dk: 104.21.74.76 172.67.200.115 2606:4700:3030::6815:4a4c 2606:4700:3033::ac43:c873 (AS13335) www.dk-gbc.dk: 104.21.74.76 172.67.200.115 2606:4700:3030::6815:4a4c 2606:4700:3033::ac43:c873 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u25879343.wl094.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u25879343.wl094.sendgrid.net	RSA · ~2048 bit
selector2	selector2-dkgbc-dk0e._domainkey.tdch1019231.onmicrosoft.com	RSA · ~1024 bit below 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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.dk-gbc.dk	ELJqnUKAJJnvBqxvt_apGZ3O3QShJJqu-_e6s_ZxKZM
TXT	_acme-challenge.dk-gbc.dk	cOO_dw3m6QIU7hwysKuCjtXBbz9xh-NLEoauu8zmV4s

🔗 TLSA / DANE#

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

🔐 DNSSEC#

107ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413281889
Primary NS (MNAME)	hugh.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 03:08:17

Field	Value
Registrar	PROCOPA IT ApS
Registered	2010-04-29
Expires	2027-04-30 (193d)

🔗 Same registrant#

2 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).

Domain	Registrar
taksonomiportal.dk	ONE.COM A/S
taksonomiportalen.dk	PROCOPA IT ApS

📋 WHOIS#

⏱️ Lookup Timing#

34ms

42ms

37ms

AAAA

26ms

TXT

181ms

CAA

43ms

HTTPS

36ms

TLSA

306ms

SOA

0ms

MTA-STS

54ms

DNSSEC

107ms

SRV

70ms

Total

941ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 11:39:50	1908ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-14 14:05:31	2473ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 17:39:09	2232ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 07:23:39	1064ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 13:17:01 shown	941ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 12:37:03	3287ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 06:51:05	1662ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-14 11:27:32	1536ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 03:41:57	498ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 03:40:43	911ms	2 NS 2 A 1 MX	🔓 Insecure