sub0.dk

Records from scan: 2026-10-12 02:18:53 · 1732ms total · last checked 2026-10-20 11:31 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sub0.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 May 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.30.124 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by sub0.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 287ms

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#

1 records 244ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.30.124	3600s	5.103.30.124.static.fibianet.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Vig

📧 MX Records#

1 records 317ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	sub0.dk	5.103.30.124	5.103.30.124.static.fibianet.dk	AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	sub0.dk → 5.103.30.124
🔶 Autoconfig	sub0.dk → 5.103.30.124

🔷 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

🧩 Web & zone#

checked 2026-10-12 02:18:53

www CNAME	sub0.dk (all on sub0.dk) → 5.103.30.124 (AS44869)
www vs bare domain	Same network sub0.dk: 5.103.30.124 (AS44869) www.sub0.dk: 5.103.30.124 (AS44869)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.sub0.dk	sub0.dk

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

402ms

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

🏷️ SOA#

86ms

Field	Value
Serial	2026101101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-12 02:34:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-05-15
Expires	2027-06-30 (252d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
0d.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

287ms

244ms

317ms

AAAA

239ms

TXT

499ms

CAA

237ms

HTTPS

306ms

TLSA

350ms

SOA

86ms

MTA-STS

339ms

DNSSEC

402ms

SRV

340ms

Total

1732ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 02:18:53 shown	1732ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 23:09:17	512ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:52:45	590ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:30:31	568ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 20:20:50	723ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 22:51:21	1727ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 08:06:28	8594ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-15 18:42:47	1114ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:19:02	2227ms	2 NS 1 A 1 MX	🔒 Secure