b43.dk

Records from scan: 2026-10-12 23:53:31 · 1687ms total · last checked 2026-10-22 20:48 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

b43.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 3 May 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.176.84.54 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by b43-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 110ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 126ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.176.84.54	3600s	—	AS31027	GlobalConnect A/S	93.176.64.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 129ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	b43-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::b 2a01:111:f403:ca21::8 2a01:111:f403:ca3c::a 52.101.103.39 52.101.209.28 52.101.68.12 52.101.73.145	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 820ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 274ms

TXT Record
MS=ms82651264
v=spf1 ip4:89.221.167.227 ip4:89.221.167.228 ip4:93.167.224.202 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (b43.dk)
-all (hard fail)	v=spf1 ip4:89.221.167.227 ip4:89.221.167.228 ip4:93.167.224.202 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.b43.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=s; rua=mailto:watchdog2@watchdog.kevlarr.io; ruf=mailto:watchdog2@watchdog.kevlarr.io; rf=afrf; fo=0; ri=86400

📬 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#

checked 2026-10-12 23:53:31

www	93.176.84.54 (AS31027) (address records, no CNAME)
www vs bare domain	Same network b43.dk: 93.176.84.54 (AS31027) www.b43.dk: 93.176.84.54 (AS31027)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-b43-dk._domainkey.b43.onmicrosoft.com	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

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.b43.dk	acme.ktp.dk

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

571ms

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

🏷️ SOA#

86ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-09-30 15:45:54

Field	Value
Registrar	Simply.com A/S
Registered	2000-05-03
Expires	2027-06-30 (250d)

📋 WHOIS#

⏱️ Lookup Timing#

110ms

126ms

129ms

AAAA

104ms

TXT

274ms

CAA

107ms

HTTPS

131ms

TLSA

245ms

SOA

86ms

MTA-STS

132ms

DNSSEC

571ms

SRV

820ms

Total

1687ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 23:53:31 shown	1687ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 14:55:56	812ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 21:28:19	575ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 11:43:44	1000ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-28 17:04:01	1141ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-19 22:13:26	4305ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:57:13	1008ms	3 NS 1 A 1 MX	🔒 Secure