usk.dk

📜 Historical scan 2026-06-24 09:20:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

usk.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 17 December 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.97.209 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by usk-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, has no 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#

4 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.97.209	3600s	nginx1.relationhouse.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	usk-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::4 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 52.101.68.5 52.101.73.12 52.101.73.4 52.101.73.6	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 52.98.149.136
🔶 Autoconfig	93.191.156.49

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 161ms

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

📝 TXT Records#

1 records 144ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (usk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.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 2026-10-12 13:37:49

www CNAME	usk.dk (all on usk.dk) → 94.231.97.209 (AS48854)
www vs bare domain	Same network usk.dk: 94.231.97.209 (AS48854) www.usk.dk: 94.231.97.209 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 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#

74ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'usk.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

41ms

Field	Value
Serial	2024021400
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 14:03:27

Field	Value
Registrar	Simply.com A/S
Registered	2001-12-17
Expires	2026-12-31 (75d)

🔗 Same registrant#

12 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
17gables.dk	DANDOMAIN A/S
17gavle.dk	DANDOMAIN A/S
aktivikastbrande.dk	DANDOMAIN A/S
flyttilikastbrande.dk	DANDOMAIN A/S
ibks.dk	Simply.com A/S
ikast-brande-kommune.dk	DANDOMAIN A/S
ikastbrande.dk	DANDOMAIN A/S
ikastbrandebibliotek.dk	DANDOMAIN A/S
ikastbrandebilledskole.dk	DANDOMAIN A/S
ikastbrandemusikskole.dk	DANDOMAIN A/S
industrialparkpaarup.dk	DANDOMAIN A/S
skoletrivselforalle.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

36ms

38ms

AAAA

46ms

TXT

144ms

CAA

61ms

HTTPS

52ms

TLSA

164ms

SOA

41ms

MTA-STS

86ms

DNSSEC

74ms

SRV

161ms

Total

844ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 13:37:49	1204ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 21:17:54	2697ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 10:30:39	1714ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-01 14:10:33	1291ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 09:20:53 shown	844ms	4 NS 1 A 1 MX	⚠️ Bogus
2026-06-22 17:52:00	1157ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-20 13:45:38	769ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 00:12:09	14620ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 00:05:23	1147ms	4 NS 1 A 1 MX	🔒 Secure