holmgren.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records

🌍

No A records found

📧 MX Records4 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod13-cph3.one.com	185.10.9.42	mx1.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod13-cph3.one.com	185.10.9.43	mx2.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod13-cph3.one.com	185.10.9.44	mx3.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod13-cph3.one.com	185.10.9.45	mx4.pub.mailpod13-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 178ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF

Policy	Record (holmgren.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC

Policy	Record (_dmarc.holmgren.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:peter@holmgren.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 / DANE4 records 105ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx2.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx3.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx4.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…

🔐 DNSSEC9114ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026082702
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

43ms

MX

36ms

AAAA

43ms

TXT

178ms

CAA

32ms

HTTPS

36ms

TLSA

105ms

SOA

0ms

MTA-STS

45ms

DNSSEC

9114ms

SRV

64ms

Total

9988ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 05:09:39	9988ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-08-28 01:10:25	573ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-08-27 00:48:19	611ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-08-14 07:22:16	936ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-07-16 09:17:05	858ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-07-08 23:01:34	1179ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-06-28 13:46:25	554ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-06-24 19:33:44	2199ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-06-20 17:00:23	2903ms	2 NS 0 A 4 MX	🔒 Secure	View
2026-06-17 12:00:53	1164ms	2 NS 0 A 4 MX	🔒 Secure	View