b43.dk DNS records

🖥️ Nameservers3 records 33ms

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 Records1 records 93ms

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 Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	1711s	b43-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::1 2a01:111:f403:ca09::9 2a01:111:f403:ca09::f 52.101.68.10 52.101.68.27 52.101.73.19 52.101.73.22	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 34ms

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

📝 TXT Records2 records 150ms

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

🔏 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)

🔐 DNSSEC51ms

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

🏷️ SOA37ms

Field	Value
Serial	2026031800
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

33ms

A

93ms

MX

38ms

AAAA

38ms

TXT

150ms

CAA

31ms

HTTPS

33ms

TLSA

514ms

SOA

37ms

MTA-STS

32ms

DNSSEC

51ms

SRV

34ms

Total

1141ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 17:04:01	1141ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 22:13:26	4305ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 13:57:13	1008ms	3 NS 1 A 1 MX	🔒 Secure	View