sejlstrøm.dk DNS records

🖥️ Nameservers2 records 61ms

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 50ms

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 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod15-cph3.g1i.one.com	104.37.35.36	mx1.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod15-cph3.g1i.one.com	104.37.35.37	mx2.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod15-cph3.g1i.one.com	104.37.35.38	mx3.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod15-cph3.g1i.one.com	104.37.35.39	mx4.mailpod15-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 Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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 98ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…

🔐 DNSSEC123ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080601
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

61ms

A

50ms

MX

63ms

AAAA

52ms

TXT

229ms

CAA

67ms

HTTPS

56ms

TLSA

98ms

SOA

0ms

MTA-STS

88ms

DNSSEC

123ms

SRV

77ms

Total

1109ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 09:08:03	1109ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-07 07:22:11	1020ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-24 19:24:26	1064ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-23 17:24:34	4872ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-08 11:47:22	1062ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 10:44:56	663ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 07:01:57	849ms	2 NS 1 A 4 MX	⚠️ Bogus	View
2026-06-25 05:37:32	766ms	2 NS 1 A 4 MX	⚠️ Bogus	View
2026-06-24 06:50:01	2870ms	2 NS 1 A 4 MX	⚠️ Bogus	View
2026-06-23 19:05:24	1145ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 22:45:18	1165ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 21:45:12	1167ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 20:04:19	689ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-18 16:47:36	2566ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 21:50:36	1095ms	2 NS 1 A 4 MX	🔒 Secure	View