dk4.dk

📜 Historical scan 2026-07-03 13:37:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dk4.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.255.47.196 is hosted by Norlys Digital A/S (AS3308) in Denmark. Mail is handled by dk4-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

3 records 44ms

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

🌍 A Records#

1 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
194.255.47.196	3600s	emea.denmark.3513.ip4.regusnet.com	AS3308	Norlys Digital A/S	194.255.0.0/16	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dk4-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::2 2a01:111:f403:ca09::7 2a01:111:f403:ca09::8 52.101.68.10 52.101.73.153 52.101.73.28 52.101.73.4	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.40
🔶 Autoconfig	194.255.47.196

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 44ms

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

📝 TXT Records#

4 records 97ms

TXT Record
_globalsign-domain-verification=wHKZfbH0kF_P20RqSciRXgxLcghZO8HQChR6jWxe3v
MS=ms35000043
MS=ms39881109
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (dk4.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 21:41:51

www	94.231.103.38 (AS48854) (address records, no CNAME)
www vs bare domain	Same network dk4.dk: 94.231.103.38 (AS48854) www.dk4.dk: 94.231.103.38 (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: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.dk4.dk	S345twT6XF6t-QkhFw3p6Fnu44Cc1Me9Mn5bW9utXow
TXT	_acme-challenge.dk4.dk	nmNcvr203xP0eJDcMiuFuglQDLer6OGvQtfBfzCRfdo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070203
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 2026-10-13 23:38:27

Field	Value
Registrar	Simply.com A/S
Registered	1997-01-31
Expires	2027-03-31 (161d)

🔗 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
21k.dk	Simply.com A/S
dk4lan.dk	Simply.com A/S
dk4play.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

44ms

27ms

42ms

AAAA

39ms

TXT

97ms

CAA

42ms

HTTPS

32ms

TLSA

156ms

SOA

0ms

MTA-STS

47ms

DNSSEC

114ms

SRV

44ms

Total

795ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 21:41:51	1415ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-05 10:31:46	1845ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 10:25:12	1218ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 09:36:36	2793ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-19 12:02:52	981ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-12 02:40:30	1553ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-10 16:51:30	1017ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-03 15:00:49	1778ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 03:09:39	1321ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-03 13:37:37 shown	795ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-01 12:25:04	1452ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-27 15:15:40	843ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-23 16:14:00	1522ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 21:01:41	866ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 03:45:26	698ms	3 NS 1 A 1 MX	🔒 Secure