sb2a.dk

📜 Historical scan 2026-10-08 20:47:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sb2a.dk is a .dk domain served by 2 nameservers (brett.ns.cloudflare.com, magali.ns.cloudflare.com). It was registered on 24 April 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mxext1.mailbox.org, mxext2.mailbox.org and 2 more. The zone is not DNSSEC-signed, 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 105ms

Nameserver	IP addresses	PTR	ASN / ISP
brett.ns.cloudflare.com	108.162.193.76 172.64.33.76 173.245.59.76 2606:4700:58::adf5:3b4c 2803:f800:50::6ca2:c14c 2a06:98c1:50::ac40:214c	brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
magali.ns.cloudflare.com	108.162.194.29 162.159.38.29 172.64.34.29 2606:4700:50::a29f:261d 2803:f800:50::6ca2:c21d 2a06:98c1:50::ac40:221d	magali.ns.cloudflare.com magali.ns.cloudflare.com magali.ns.cloudflare.com magali.ns.cloudflare.com magali.ns.cloudflare.com magali.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

4 records 137ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mxext1.mailbox.org	2001:67c:2050:104:0:1:25:1 80.241.60.212	mx1.mailbox.org mx1.mailbox.org	AS199118 Heinlein Support GmbH AS199118 Heinlein Support GmbH
10	300s	mxext2.mailbox.org	2001:67c:2050:104:0:2:25:1 80.241.60.215	mx2.mailbox.org mx2.mailbox.org	AS199118 Heinlein Support GmbH AS199118 Heinlein Support GmbH
10	300s	mxext3.mailbox.org	2001:67c:2050:104:0:3:25:1 80.241.60.216	mx3.mailbox.org mx3.mailbox.org	AS199118 Heinlein Support GmbH AS199118 Heinlein Support GmbH
10	300s	mxext4.mailbox.org	2001:67c:2050:104:0:4:25:1 80.241.60.217	mx4.mailbox.org mx4.mailbox.org	AS199118 Heinlein Support GmbH AS199118 Heinlein Support GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 279ms

TXT Record
v=spf1 include:mailbox.org ~all

✉️ SPF#

Policy	Record (sb2a.dk)
~all (soft fail)	v=spf1 include:mailbox.org ~all

📨 DMARC#

Policy	Record (_dmarc.sb2a.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:victor@sb2a.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 2026-10-25 08:52:42

www	NXDOMAIN
www vs bare domain	Neither resolves sb2a.dk: no address www.sb2a.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.sb2a.dk	QJNTxuStcaQx7qVowVemhEgmSTERO4IW2xD1nzAm4UI
TXT	_acme-challenge.sb2a.dk	bd7R5Y7noPpJJQVocdZ51RzU3ygt3sVuOqoumZRKP5A

🔗 TLSA / DANE#

12 records 356ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext2.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext4.mailbox.org	DANE-EE · SPKI · SHA-256	996AD31D65E03F038B8EC950F6F26611…

🔐 DNSSEC#

162ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

70ms

Field	Value
Serial	2416970906
Primary NS (MNAME)	brett.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-22 17:31:21

Field	Value
Registrar	Simply.com A/S
Registered	2025-04-24
Expires	2027-04-23 (179d)

🔗 Same registrant#

1 domain

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
victorheiberg.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

105ms

116ms

137ms

AAAA

118ms

TXT

279ms

CAA

112ms

HTTPS

102ms

TLSA

356ms

SOA

70ms

MTA-STS

111ms

DNSSEC

162ms

SRV

165ms

Total

4467ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 08:52:42	1027ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-24 03:41:55	2043ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-22 17:02:13	1773ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-12 02:08:07	2023ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-09 23:29:06	2295ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-08 20:47:33 shown	4467ms	2 NS 0 A 4 MX	🔓 Insecure
2026-10-05 16:08:00	1172ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-30 15:42:59	1114ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-29 17:55:08	1082ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-29 13:59:27	1746ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-27 13:42:14	1626ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-23 13:07:07	1474ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-19 12:24:55	2134ms	2 NS 0 A 4 MX	🔓 Insecure
2026-09-08 12:46:35	2284ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-31 06:55:37	885ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-29 08:23:59	1150ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 02:59:08	690ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-10 21:28:34	855ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 17:39:45	853ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 00:00:25	486ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 01:37:07	792ms	2 NS 2 A 0 MX	🔓 Insecure