sdgk.dk

📜 Historical scan 2026-09-16 19:52:22  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sdgk.dk is a .dk domain served by 2 nameservers (colin.ns.cloudflare.com, paige.ns.cloudflare.com). It was registered on 25 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.13.48 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is not DNSSEC-signed, publishes a 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   97ms
NameserverIP addressesPTRASN / ISP
colin.ns.cloudflare.com 108.162.195.75
162.159.44.75
172.64.35.75
2606:4700:58::a29f:2c4b
2803:f800:50::6ca2:c34b
2a06:98c1:50::ac40:234b		 colin.ns.cloudflare.com
colin.ns.cloudflare.com
colin.ns.cloudflare.com
colin.ns.cloudflare.com
colin.ns.cloudflare.com
colin.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
paige.ns.cloudflare.com 108.162.194.38
162.159.38.38
172.64.34.38
2606:4700:50::a29f:2626
2803:f800:50::6ca2:c226
2a06:98c1:50::ac40:2226		 paige.ns.cloudflare.com
paige.ns.cloudflare.com
paige.ns.cloudflare.com
paige.ns.cloudflare.com
paige.ns.cloudflare.com
paige.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   149ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.13.48 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.154.160 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   127ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 300s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 300s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 300s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records   205ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3035::ac43:9aa0 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::6815:d30 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   126ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.13.48,172.67.154.160 ech=AEX+DQBBXgAgACBVSpJUl9Ec7EOw0KfFoUxy3TVZg/lxh6txjAhqV+LTIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:9aa0,2606:4700:3036::6815:d30

📝 TXT Records#

1 records   273ms
TXT Record
_globalsign-domain-verification=37J9nCtMCMWK-yjD30lugEa_hcZ0BiyVZYHRQX3cM_

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_dmarc.sdgk.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:z2g4rfk7@ag.eu.dmarcadvisor.com, mailto:hdm@salsolo.dk; aspf=r

📬 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 2026-10-22 00:35:08
www104.21.13.48 172.67.154.160 2606:4700:3035::ac43:9aa0 2606:4700:3036::6815:d30 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYDelete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

4 records   133ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…

🔐 DNSSEC#

221ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2414965263
Primary NS (MNAME)colin.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-22 00:54:27
FieldValue
RegistrarONE.COM A/S
Registered2021-01-25
Expires2027-01-31 (99d)

🔗 Same registrant#

3 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).

DomainRegistrar
salsolo.dkONE.COM A/S
saltech.dkONE.COM A/S
sardercopenhagen.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
97ms
A
149ms
MX
127ms
AAAA
205ms
TXT
273ms
CAA
207ms
HTTPS
126ms
TLSA
133ms
SOA
0ms
MTA-STS
111ms
DNSSEC
221ms
SRV
198ms
Total
1091ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-22 00:35:08 714ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-10 01:51:19 609ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-24 18:45:10 781ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-16 19:52:22 shown 1091ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-07 21:32:52 1833ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-29 06:51:25 679ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-27 04:34:40 4283ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-22 18:02:19 4426ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-17 15:26:01 4011ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-06 02:56:42 1677ms 2 NS 2 A 4 MX 🔓 Insecure
2026-07-09 02:28:58 1949ms 2 NS 2 A 4 MX 🔓 Insecure
2026-07-07 04:23:29 2433ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-26 08:04:11 934ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-17 23:28:12 759ms 2 NS 1 A 4 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone