sub.dk

📜 Historical scan 2026-06-27 11:22:18 · ← 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 48ms

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 54ms

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 27ms

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 145ms

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#

68ms

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

🏷️ SOA#

25ms

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#

48ms

54ms

27ms

AAAA

42ms

TXT

145ms

CAA

26ms

HTTPS

26ms

TLSA

69ms

SOA

25ms

MTA-STS

33ms

DNSSEC

68ms

SRV

48ms

Total

485ms

🕐 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	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 shown	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