duckertholding.dk

📜 Historical scan 2026-08-31 21:34:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duckertholding.dk is a .dk domain served by 2 nameservers (alfred.ns.cloudflare.com, carrera.ns.cloudflare.com). It was registered on 26 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by duckertholding-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

2 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
alfred.ns.cloudflare.com	108.162.195.131 162.159.44.131 172.64.35.131 2606:4700:58::a29f:2c83 2803:f800:50::6ca2:c383 2a06:98c1:50::ac40:2383	alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
carrera.ns.cloudflare.com	108.162.194.231 162.159.38.231 172.64.34.231 2606:4700:50::a29f:26e7 2803:f800:50::6ca2:c2e7 2a06:98c1:50::ac40:22e7	carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	duckertholding-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 2a01:111:f403:ca48::8 52.101.68.10 52.101.73.123 52.101.73.30 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 210ms

TXT Record
MS=ms38688949
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (duckertholding.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.duckertholding.dk)
p=reject	v=DMARC1; p=reject; adkim=r; 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 2026-10-07 21:54:36

www	NXDOMAIN
www vs bare domain	Neither resolves duckertholding.dk: no address www.duckertholding.dk: no address
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-duckertholding-dk._domainkey.jduckertholding.y-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-duckertholding-dk._domainkey.jduckertholding.y-v1.dkim.mail.microsoft	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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9088ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2412906378
Primary NS (MNAME)	alfred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 21:39:38

Field	Value
Registrar	DANDOMAIN A/S
Registered	2026-02-26
Expires	2027-02-25 (131d)

🔗 Same registrant#

5 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
dentyou.dk	Eurodns S.A
gernyx-fotograf.dk	Punktum dk A/S (direct)
jduckertholding.dk	DANDOMAIN A/S
justface.dk	Punktum dk A/S (direct)
zanity.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

52ms

59ms

43ms

AAAA

52ms

TXT

210ms

CAA

49ms

HTTPS

59ms

TLSA

417ms

SOA

0ms

MTA-STS

61ms

DNSSEC

9088ms

SRV

87ms

Total

9895ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 18:33:09	1004ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-13 07:23:11	1284ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-31 21:34:34 shown	9895ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-26 09:59:35	1501ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-23 11:40:01	4784ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-24 22:45:36	9138ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-02 19:02:12	10203ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-26 05:58:46	1420ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-24 14:28:54	2105ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-22 17:13:27	2130ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-22 06:11:36	913ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 04:55:41	758ms	2 NS 0 A 1 MX	🔓 Insecure