dfk.dk

📜 Historical scan 2026-10-07 16:20:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dfk.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.10 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by dfk-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 43ms

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 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.10	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dfk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::a 2a01:111:f403:ca21::c 2a01:111:f403:ca38::8 52.101.103.137 52.101.209.28 52.101.68.10 52.101.91.153	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-matpr04cu00101.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)#

1 records 30ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:51:51c5:e734:d949	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 160ms

TXT Record
google-site-verification=2dsNQI5-P98ygnz6IGUYz5No9SpOQRBeALg6TOywIs0
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (dfk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.dfk.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@dfk.dk

📬 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 23:20:21

www	46.30.213.10 2a02:2350:5:10a:51:51c5:e734:d949 (AS51468) (address records, no CNAME)
www vs bare domain	Same network dfk.dk: 46.30.213.10 2a02:2350:5:10a:51:51c5:e734:d949 (AS51468) www.dfk.dk: 46.30.213.10 2a02:2350:5:10a:51:51c5:e734:d949 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-dfk-dk._domainkey.danskforeningforkvalitet850.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#

60ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2026090701
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 2026-10-09 20:30:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-11-29
Expires	2026-12-31 (74d)

📋 WHOIS#

⏱️ Lookup Timing#

43ms

33ms

31ms

AAAA

30ms

TXT

160ms

CAA

27ms

HTTPS

34ms

TLSA

603ms

SOA

43ms

MTA-STS

55ms

DNSSEC

60ms

SRV

50ms

Total

1139ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 23:20:20	1568ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 20:13:38	1181ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 16:20:52 shown	1139ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 21:01:39	988ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 21:15:29	855ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 21:10:17	1221ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 13:00:43	4541ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 18:32:20	4780ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 21:37:40	1668ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 23:55:22	1127ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 02:36:00	1510ms	2 NS 1 A 1 MX	🔒 Secure