dfb.dk

📜 Historical scan 2026-09-06 15:11:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dfb.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.191 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a 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 42ms

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 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.191	3600s	webforward.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

3 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
10	600s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
20	600s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	46.30.215.191
🔶 Autoconfig	46.30.215.191

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 99ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	10	443	outlook.domea.dk
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 207ms

TXT Record
v=spf1 include:_dfb_dk.spf-protect.com -all
yahoo-verification-key=QQGar9oL6bApgKIXTJVFf+3tWIsPRrrRCYc9LhpxlFM=

✉️ SPF#

Policy	Record (dfb.dk)
-all (hard fail)	v=spf1 include:_dfb_dk.spf-protect.com -all

📨 DMARC#

Policy	Record (_dmarc.dfb.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6641c269b24ad@dmarc-dk.centerasecurity.com;

📬 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 2026-10-17 15:14:49

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Same network dfb.dk: 195.47.247.18 (AS51468) www.dfb.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 92ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC#

145ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090101
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 2026-10-16 18:51:15

Field	Value
Registrar	ONE.COM A/S
Registered	1997-11-28
Expires	2026-12-31 (74d)

🔗 Same registrant#

36 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
afd-dfb.dk	ONE.COM A/S
afdbestyrelsen.dk	ONE.COM A/S
almenlejebolig.dk	Punktum dk A/S (direct)
anes-minde.dk	Punktum dk A/S (direct)
ballerup-aeldreboligselskab.dk	Punktum dk A/S (direct)
blishoejvej.dk	Punktum dk A/S (direct)
blomsterhaven-boligselskab.dk	Punktum dk A/S (direct)
boligselskabet-bsb-glamsbjerg.dk	Punktum dk A/S (direct)
boligselskabet-bsb-munkebo.dk	Punktum dk A/S (direct)
boligselskabet-bsb-nordfyn.dk	Punktum dk A/S (direct)
boligselskabet-bsb-svendborg.dk	Punktum dk A/S (direct)
boligselskabet-domea-faxe.dk	Punktum dk A/S (direct)
boligselskabet-erritsoe.dk	Punktum dk A/S (direct)
boligselskabet-hjoerring.dk	Punktum dk A/S (direct)
boligselskabet-hybenvaenget.dk	Punktum dk A/S (direct)
boligselskabet-kaerbo.dk	Punktum dk A/S (direct)
boligselskabet-teglhaven.dk	Punktum dk A/S (direct)
boligselskabet-tikoeb.dk	Punktum dk A/S (direct)
bsb.dk	Punktum dk A/S (direct)
danmarks-boligselskab.dk	Punktum dk A/S (direct)
danmarksalmenekonsulenthus.dk	ONE.COM A/S
domea-afd.dk	Punktum dk A/S (direct)
domeabolig.dk	ONE.COM A/S
faaborg-aeldreboligselskab.dk	Punktum dk A/S (direct)
fruehojgaard.dk	ONE.COM A/S
hilleroed-aeldreboligselskab.dk	Punktum dk A/S (direct)
humlebaek-boligselskab.dk	Punktum dk A/S (direct)
minboligservice.dk	ONE.COM A/S
ramsoe-aeldreboligselskab.dk	Punktum dk A/S (direct)
roedding-boligselskab.dk	Punktum dk A/S (direct)
samarbejdshuset.dk	ONE.COM A/S
soebo.dk	Punktum dk A/S (direct)
solleroed-aeldreboligselskab.dk	Punktum dk A/S (direct)
svendborg-boligselskab.dk	Punktum dk A/S (direct)
venstenborg-kollegiet.dk	Punktum dk A/S (direct)
vojens-bsb.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

56ms

67ms

AAAA

82ms

TXT

207ms

CAA

57ms

HTTPS

49ms

TLSA

92ms

SOA

0ms

MTA-STS

75ms

DNSSEC

145ms

SRV

99ms

Total

1094ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 15:45:20	977ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-26 15:33:05	705ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-23 19:59:12	1137ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-21 06:47:21	1092ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-06 15:11:34 shown	1094ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-25 13:28:33	756ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-23 18:03:10	918ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 11:00:17	1137ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 02:36:19	887ms	2 NS 1 A 3 MX	🔒 Secure