cphcontractor.dk DNS records

🖥️ Nameservers2 records 49ms

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 Records1 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.75	3600s	webcluster1.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 20ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx4.pub.mailpod12-cph3.one.com	104.37.34.249	mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod12-cph3.one.com	104.37.34.247	mx2.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx1.pub.mailpod12-cph3.one.com	104.37.34.246	mx1.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod12-cph3.one.com	104.37.34.248	mx3.pub.mailpod12-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 13ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:58:c872:8ded:34de	3600s	—	AS51468	One.com A/S	2a02:2350::/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 84ms

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

✉️ SPF

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

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

📨 DMARC

Policy	Record (_dmarc.cphcontractor.dk)
p=reject	v=DMARC1; p=reject

📬 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 219ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…

🔐 DNSSEC126ms

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

Key type	Algorithm	Public key
KSK	ECDSA P-256/SHA-256	/lBOVeFKOucfxKyQqI374g2kSvbrZfo2b0aGUrMd…
ZSK	ECDSA P-256/SHA-256	LfGFduhTxRttqYwWT3MBsiC2ZfHl6tvqoQLvihYG…

🏷️ SOA0ms

Field	Value
Serial	2026082101
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

49ms

A

34ms

MX

20ms

AAAA

13ms

TXT

84ms

CAA

6ms

HTTPS

33ms

TLSA

219ms

SOA

0ms

MTA-STS

45ms

DNSSEC

126ms

SRV

0ms

Total

2123ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 18:30:32	2123ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-28 03:23:27	774ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 18:43:06	861ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-21 16:02:13	1692ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 02:36:59	648ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 19:36:07	734ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-22 14:07:57	1169ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 23:12:22	936ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 22:48:40	609ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 22:40:40	718ms	2 NS 1 A 4 MX	🔒 Secure	View