nbs4.dk

📜 Historical scan 2026-06-25 15:21:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nbs4.dk is a .dk domain served by 2 nameservers (ns1.telecomx.dk, ns2.telecomx.dk). It was registered on 6 September 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.79.112 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mx1.onwelcom.dk, mx2.onwelcom.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 228ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.telecomx.dk	62.192.160.190	ns1.telecomx.dk	AS205984 Powernet Aps
ns2.telecomx.dk	62.192.160.191	ns2.telecomx.dk	AS205984 Powernet Aps

🌍 A Records#

1 records 228ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.112	3600s	ph01.powernet.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 199ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mx1.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
5	3600s	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	127.0.0.1
🔶 Autoconfig	nbs4.dk → 185.51.79.112

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 229ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	exchange.onwelcom.dk

📝 TXT Records#

1 records 350ms

TXT Record
v=spf1 a ip4:185.51.79.235 ip4:185.51.79.242 mx -all

✉️ SPF#

Policy	Record (nbs4.dk)
-all (hard fail)	v=spf1 a ip4:185.51.79.235 ip4:185.51.79.242 mx -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 04:10:47

www CNAME	nbs4.dk (all on nbs4.dk) → 185.51.79.112 (AS205984)
www vs bare domain	Same network nbs4.dk: 185.51.79.112 (AS205984) www.nbs4.dk: 185.51.79.112 (AS205984)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.nbs4.dk	nbs4.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

311ms

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

🏷️ SOA#

220ms

Field	Value
Serial	16
Primary NS (MNAME)	ns1.telecomx.dk
Responsible (RNAME)	hostmaster@telecomx.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-07 04:21:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-09-06
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

228ms

199ms

AAAA

222ms

TXT

350ms

CAA

200ms

HTTPS

222ms

TLSA

133ms

SOA

220ms

MTA-STS

248ms

DNSSEC

311ms

SRV

229ms

Total

1345ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 04:01:52	759ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-05 22:24:22	659ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-25 20:36:34	487ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-19 23:56:48	4450ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-06 10:35:35	4545ms	2 NS 1 A 2 MX	🔓 Insecure
2026-07-02 14:55:32	533ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-25 15:21:29 shown	1345ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-18 05:54:24	687ms	2 NS 1 A 2 MX	🔓 Insecure