b18.dk DNS records

🖥️ Nameservers2 records 73ms

Nameserver	IP addresses	PTR	ASN / ISP
jacob.ns.cloudflare.com	108.162.195.162 162.159.44.162 172.64.35.162 2606:4700:58::a29f:2ca2 2803:f800:50::6ca2:c3a2 2a06:98c1:50::ac40:23a2	jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com jacob.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lia.ns.cloudflare.com	108.162.192.185 172.64.32.185 173.245.58.185 2606:4700:50::adf5:3ab9 2803:f800:50::6ca2:c0b9 2a06:98c1:50::ac40:20b9	lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 74ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.79.123	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.145.161	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 87ms

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
20	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

🔷 AAAA Records (IPv6)2 records 86ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:91a1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:4f7b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 86ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.79.123,172.67.145.161 ech=AEX+DQBBjQAgACBSh8QW+XqlJXROM9FqAwq4DhVtV7x48NVL/eUjcZ0oNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:91a1,2606:4700:3031::6815:4f7b

📝 TXT Records1 records 307ms

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

✉️ SPF

Policy	Record (b18.dk)
~all (soft fail)	v=spf1 include:mailbox.org ~all

📨 DMARC

Policy	Record (_dmarc.b18.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@b18.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

🔗 TLSA / DANE9 records 168ms

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	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext1.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
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	996AD31D65E03F038B8EC950F6F26611…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	4758AF6F02DFB5DC8795FA402E77A8A0…
SMTP _25._tcp.mxext3.mailbox.org	DANE-EE · SPKI · SHA-256	E41CC7633029AFDBA53744D7E5FC31EF…

🔐 DNSSEC184ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2413389465
Primary NS (MNAME)	jacob.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 RegistrationWHOIS fetched 2026-08-28 13:49:26

Field	Value
Registrar	Soluciones Corporativas IP, SL
Registered	2025-06-23
Expires	2027-06-22 (293d)

📋 WHOIS

⏱️ Lookup Timing

NS

73ms

A

74ms

MX

87ms

AAAA

86ms

TXT

307ms

CAA

88ms

HTTPS

86ms

TLSA

168ms

SOA

0ms

MTA-STS

143ms

DNSSEC

184ms

SRV

139ms

Total

2216ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 13:48:39	2216ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-14 20:34:19	1642ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-07-01 19:33:00	2447ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-06-16 13:57:27	1016ms	2 NS 2 A 3 MX	🔓 Insecure	View