korf.dk

📜 Historical scan 2026-10-03 00:26:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

korf.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 March 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by korf-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#

2 records 145ms

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#

🌍

No A records found

📧 MX Records#

1 records 135ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	korf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca04::f 2a01:111:f403:ca09::a 52.101.68.12 52.101.68.15 52.101.68.27 52.101.68.39	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 344ms

TXT Record
MS=ms81544844
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (korf.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 2026-10-08 01:44:48

www CNAME	ywclust1.cybercity.dk (all on cybercity.dk) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.korf.dk
www vs bare domain	Neither resolves korf.dk: no address www.korf.dk: no address
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

283ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

68ms

Field	Value
Serial	2026100201
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 2026-10-03 00:55:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-03-11
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

145ms

130ms

135ms

AAAA

114ms

TXT

344ms

CAA

141ms

HTTPS

144ms

TLSA

1039ms

SOA

68ms

MTA-STS

168ms

DNSSEC

283ms

SRV

342ms

Total

2518ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 01:44:48	1370ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-03 00:26:36 shown	2518ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-23 21:20:06	975ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-26 10:05:38	1209ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-21 05:08:06	5983ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-25 23:44:49	715ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-20 19:43:43	1292ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-20 18:24:51	1181ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 08:54:57	7143ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-18 08:12:40	937ms	2 NS 0 A 1 MX	🔒 Secure