ferdinands.dk DNS records

🖥️ Nameservers2 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
alina.ns.cloudflare.com	108.162.192.61 172.64.32.61 173.245.58.61 2606:4700:50::adf5:3a3d 2803:f800:50::6ca2:c03d 2a06:98c1:50::ac40:203d	alina.ns.cloudflare.com alina.ns.cloudflare.com alina.ns.cloudflare.com alina.ns.cloudflare.com alina.ns.cloudflare.com alina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mike.ns.cloudflare.com	108.162.195.63 162.159.44.63 172.64.35.63 2606:4700:58::a29f:2c3f 2803:f800:50::6ca2:c33f 2a06:98c1:50::ac40:233f	mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.43.137	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.48	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records4 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod14-cph3.one.com	185.10.9.212	mx1.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod14-cph3.one.com	185.10.9.213	mx2.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod14-cph3.one.com	185.10.9.214	mx3.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	300s	mx4.pub.mailpod14-cph3.one.com	185.10.9.215	mx4.pub.mailpod14-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.43.137
🔶 Autoconfig	104.21.43.137

🔷 AAAA Records (IPv6)2 records 87ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2b89	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:b430	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 97ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.43.137,172.67.180.48 ech=AEX+DQBBTwAgACAOmWlPq4z5qUDpGw2hdQCkGJB2jlJGHIBUXoIPWZLTWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2b89,2606:4700:3036::ac43:b430

📝 TXT Records3 records 242ms

TXT Record
google-site-verification=ElaocuhhT23meu_X-DjDI6QVPIt4dzPX9p5-4N2ZESE
v=spf1 a mx include:spf.mtasv.net include:_custspf.one.com ~all
v=spf1 include:servers.mcsv.net ?all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (ferdinands.dk)
~all (soft fail)	v=spf1 a mx include:spf.mtasv.net include:_custspf.one.com ~all
?all (neutral)	v=spf1 include:servers.mcsv.net ?all

📨 DMARC

Policy	Record (_dmarc.ferdinands.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:re+x60jlt6ddez@dmarc.postmarkapp.com; aspf=r;

📬 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 / DANE4 records 84ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…

🔐 DNSSEC123ms

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	2411538216
Primary NS (MNAME)	alina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

64ms

A

41ms

MX

70ms

AAAA

87ms

TXT

242ms

CAA

77ms

HTTPS

97ms

TLSA

84ms

SOA

0ms

MTA-STS

122ms

DNSSEC

123ms

SRV

112ms

Total

855ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 20:53:32	855ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-27 20:09:15	994ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-27 08:07:23	1018ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-26 03:49:00	848ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-08 18:37:31	1391ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-06 20:57:00	1390ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-06-18 15:31:42	987ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-06-18 13:35:57	1284ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-06-17 09:30:56	845ms	2 NS 2 A 4 MX	🔓 Insecure	View