dduk.dk

📜 Historical scan 2026-06-24 03:02:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dduk.dk is a .dk domain served by 2 nameservers (ns61.domaincontrol.com, ns62.domaincontrol.com). It was registered on 1 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.127 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 184ms

Nameserver	IP addresses	PTR	ASN / ISP
ns61.domaincontrol.com	2603:5:2153::20 97.74.101.32	ns61.domaincontrol.com ns61.domaincontrol.com	AS44273 Host Europe GmbH AS44273 Host Europe GmbH
ns62.domaincontrol.com	173.201.69.32 2603:5:2253::20	ns62.domaincontrol.com ns62.domaincontrol.com	AS44273 Host Europe GmbH AS44273 Host Europe GmbH

🌍 A Records#

2 records 176ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.127	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.0.125	3600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records#

5 records 174ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c03::1b	rd-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 169ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:7::7d	3600s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2a06:98c1:58::7d	3600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:58:0:0:0:0:0/47	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 385ms

TXT Record
v=spf1 include:_spf.google.com a:burdasmtp.hostinghouse.com ~all

✉️ SPF#

Policy	Record (dduk.dk)
~all (soft fail)	v=spf1 include:_spf.google.com a:burdasmtp.hostinghouse.com ~all

📨 DMARC#

Policy	Record (_dmarc.dduk.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@dduk.dk; ruf=mailto:dmarc@dduk.dk; fo=1; adkim=s; aspf=s;

📬 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 2026-10-10 17:15:24

www CNAME	dns.umbraco.io (all on umbraco.io) → 162.159.140.127 172.66.0.125 2606:4700:7::7d 2a06:98c1:58::7d (AS13335)
www vs bare domain	Same network dduk.dk: 162.159.140.127 172.66.0.125 2606:4700:7::7d 2a06:98c1:58::7d (AS13335) www.dduk.dk: 162.159.140.127 172.66.0.125 2606:4700:7::7d 2a06:98c1:58::7d (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

252ms

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

🏷️ SOA#

173ms

Field	Value
Serial	2024030803
Primary NS (MNAME)	ns61.domaincontrol.com
Responsible (RNAME)	dns@jomax.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 13:31:10

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-03-01
Expires	2027-02-28 (126d)

🔗 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).

Domain	Registrar
bigsur.dk	Punktum dk A/S (direct)
dendanskeukrainekomite.dk	Punktum dk A/S (direct)
gfcityguide.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

184ms

176ms

174ms

AAAA

169ms

TXT

385ms

CAA

247ms

HTTPS

220ms

TLSA

140ms

SOA

173ms

MTA-STS

168ms

DNSSEC

252ms

SRV

252ms

Total

1007ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 02:00:57	828ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-26 08:18:33	9721ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 00:24:35	9912ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 03:02:59 shown	1007ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-22 12:07:59	907ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 01:23:08	611ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 01:20:18	704ms	2 NS 2 A 5 MX	🔓 Insecure