dui.dk

Records from scan: 2026-10-08 01:56:50 · 5266ms total · last checked 2026-10-20 01:17 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dui.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 July 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.148.28.150 is hosted by Webdock.io ApS (AS44803) in Denmark. Mail is handled by dui-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 523ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 62ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
45.148.28.150	600s	dui.dk	AS44803	Webdock.io ApS	45.148.28.0/22	🇩🇰 Denmark	Asperup

📧 MX Records#

1 records 536ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dui-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca21::a 2a01:111:f403:ca38::8 2a01:111:f403:ca48::a 52.101.103.36 52.101.68.10 52.101.68.29 52.101.91.162	mail-db4pr02cu00204.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.154.152
🔶 Autoconfig	45.148.28.150

🔷 AAAA Records (IPv6)#

1 records 494ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:1301:4050:45:148:28:150:0	43200s	dui.dk	AS44803	Webdock.io ApS	2a06:1301:4050:0:0:0:0:0/48	🇩🇰 Denmark	Nørre Åby

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 563ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 900ms

TXT Record
ms-domain-verification=1cd57bed-3eef-400a-87d8-b3f93a82fd28
ms-domain-verification=b81cb3ae-61d1-48fa-9f6a-5e2b45cc1277
v=spf1 a mx include:spf.protection.outlook.com a:mail.kimdamgroenhoej.dk include:spf.mira.dk -all

✉️ SPF#

Policy	Record (dui.dk)
-all (hard fail)	v=spf1 a mx include:spf.protection.outlook.com a:mail.kimdamgroenhoej.dk include:spf.mira.dk -all

📨 DMARC#

Policy	Record (_dmarc.dui.dk)
p=quarantine	v=DMARC1; p=quarantine; 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#

checked 2026-10-08 01:56:51

www	45.148.28.150 2a06:1301:4050:45:148:28:150:0 (AS44803) (address records, no CNAME)
www vs bare domain	Same network dui.dk: 45.148.28.150 2a06:1301:4050:45:148:28:150:0 (AS44803) www.dui.dk: 45.148.28.150 2a06:1301:4050:45:148:28:150:0 (AS44803)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u2338829.wl080.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u2338829.wl080.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-dui-dk._domainkey.duilegogvirke.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: 7/10 · policy: -all

error include:spf.mira.dk includes itself (directly or via another include): receivers return permerror

🔗 TLSA / DANE#

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

🔐 DNSSEC#

680ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

99ms

Field	Value
Serial	2026100701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 09:50:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-07-30
Expires	2029-09-30 (1075d)

🔗 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#

523ms

62ms

536ms

AAAA

494ms

TXT

900ms

CAA

449ms

HTTPS

470ms

TLSA

2019ms

SOA

99ms

MTA-STS

618ms

DNSSEC

680ms

SRV

563ms

Total

5266ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 01:56:50 shown	5266ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 23:37:23	1506ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 12:56:26	1658ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 00:13:25	2840ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 20:13:56	974ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 22:31:56	6892ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-09 19:07:36	1570ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 04:43:21	1357ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 17:23:45	1053ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:11:32	2824ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:10:54	14359ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:08:38	822ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:00:41	2834ms	2 NS 1 A 1 MX	🔒 Secure