signal4.dk DNS records

🖥️ Nameservers2 records 65ms

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 109ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records4 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.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 338ms

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

✉️ SPF

Policy	Record (signal4.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC

Policy	Record (_dmarc.signal4.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 129ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC269ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082905
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

65ms

A

109ms

MX

76ms

AAAA

67ms

TXT

338ms

CAA

94ms

HTTPS

85ms

TLSA

129ms

SOA

0ms

MTA-STS

154ms

DNSSEC

269ms

SRV

135ms

Total

1517ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 15:22:05	1517ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-29 14:48:29	579ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-06 20:41:51	3088ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-22 01:01:42	16963ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-10 11:16:56	8994ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-01 20:01:51	755ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-30 05:59:11	779ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-22 08:18:59	756ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-22 04:05:24	922ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 02:27:15	781ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 22:54:10	735ms	2 NS 1 A 4 MX	🔒 Secure	View