sub.dk

📜 Historical scan 2026-10-02 13:25:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sub.dk is a .dk domain served by 2 nameservers (ns1.centrum.dk, ns2.centrum.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.5.39.156 is hosted by Bo data ApS (AS49974) in Denmark. Mail is handled by mail.sub.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.centrum.dk	213.5.39.156	213-5-39-156.static.ip.bodata.dk	AS49974 Bo data ApS
ns2.centrum.dk	80.209.94.234	80.209.94.234.static.fibianet.dk	AS44869 FIBIA P/S

🌍 A Records#

1 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.5.39.156	3600s	213-5-39-156.static.ip.bodata.dk	AS49974	Bo data ApS	213.5.32.0/21	🇩🇰 Denmark	Vildbjerg

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.sub.dk	213.5.39.167	mail.centrum.dk	AS49974 Bo data ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 131ms

TXT Record
v=spf1 mx a ~all

✉️ SPF#

Policy	Record (sub.dk)
~all (soft fail)	v=spf1 mx a ~all

📨 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#

latest probe, not this scan · checked 2026-10-09 08:08:38

www	213.5.39.156 (AS49974) (address records, no CNAME)
www vs bare domain	Same network sub.dk: 213.5.39.156 (AS49974) www.sub.dk: 213.5.39.156 (AS49974)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

33ms

Field	Value
Serial	2020060102
Primary NS (MNAME)	ns1.centrum.dk
Responsible (RNAME)	gsig@centrum.dk
Refresh	7200s
Retry	540s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

28ms

31ms

41ms

AAAA

48ms

TXT

131ms

CAA

39ms

HTTPS

35ms

TLSA

140ms

SOA

33ms

MTA-STS

42ms

DNSSEC

69ms

SRV

56ms

Total

533ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 08:08:38	573ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 17:00:56	444ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 13:25:04 shown	533ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-04 14:53:59	556ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-20 20:09:50	543ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-19 03:23:29	65535ms	2 NS 0 A 0 MX	❓ Unknown
2026-06-27 11:22:18	485ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 01:28:04	556ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:15:43	518ms	2 NS 1 A 1 MX	🔓 Insecure