first-security.dk DNS records

🖥️ Nameservers2 records 84ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.64	—	webcluster1.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 83ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:1:4c92:eba:ce50	—	—	AS51468	One.com A/S	2a02:2350::/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 225ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.first-security.dk)
no policy tag	v=DMARC1; p=dmarc; rua=mailto:kontakt@first-security.dk; ruf=mailto:kontakt@first-security.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 93ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC269ms

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

🏷️ SOA89ms

Field	Value
Serial	2026052105
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

84ms

A

88ms

MX

80ms

AAAA

83ms

TXT

225ms

CAA

71ms

HTTPS

106ms

TLSA

93ms

SOA

89ms

MTA-STS

50ms

DNSSEC

269ms

SRV

0ms

Total

1533ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 22:04:49	991ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-21 21:07:17	4783ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-04 22:42:37	1020ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 16:12:13	671ms	2 NS 1 A 4 MX	⚠️ Bogus	View
2026-06-20 11:12:52	2578ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-19 18:13:07	2774ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 09:20:36	1533ms	2 NS 1 A 4 MX	🔒 Secure	View