3bf.dk

📜 Historical scan 2026-07-03 10:24:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3bf.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 September 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.104 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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 275ms

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 280ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.104	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

4 records 232ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records 264ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:8041:1f4d:9e6:534e	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#

1 records 680ms

TXT Record
v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (3bf.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com 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 2026-10-13 07:07:32

www	46.30.213.104 2a02:2350:5:10b:8041:1f4d:9e6:534e (AS51468) (address records, no CNAME)
www vs bare domain	Same network 3bf.dk: 46.30.213.104 2a02:2350:5:10b:8041:1f4d:9e6:534e (AS51468) www.3bf.dk: 46.30.213.104 2a02:2350:5:10b:8041:1f4d:9e6:534e (AS51468)
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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 445ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC#

509ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026062902
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 2026-10-10 02:48:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-09-19
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

275ms

280ms

232ms

AAAA

264ms

TXT

680ms

CAA

279ms

HTTPS

251ms

TLSA

445ms

SOA

0ms

MTA-STS

363ms

DNSSEC

509ms

SRV

315ms

Total

4706ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 06:39:44	758ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-24 05:40:42	701ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-28 08:52:28	940ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-22 02:24:32	5249ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-20 01:56:00	1561ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-27 04:15:21	24820ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-21 15:38:06	907ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-03 10:24:57 shown	4706ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-24 01:26:26	799ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-23 09:39:47	1157ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 01:51:23	1051ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 19:36:15	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 10:32:55	1320ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-16 13:13:00	989ms	2 NS 1 A 4 MX	🔒 Secure