kobberholm.dk

📜 Historical scan 2026-06-21 20:57:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kobberholm.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.79.130 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mailfilter.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 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.onwelcom.dk	185.51.79.241	mail.onwelcom.dk	AS205984 Powernet Aps
ns2.onwelcom.dk	185.51.79.251	—	AS205984 Powernet Aps

🌍 A Records#

1 records 91ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.130	21600s	web02.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	mailfilter.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
20	21600s	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.51.79.130
🔶 Autoconfig	185.51.79.130

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 318ms

TXT Record
v=spf1 a ip4:185.51.79.241 ip4:195.190.31.0/24 mx ~all

✉️ SPF#

Policy	Record (kobberholm.dk)
~all (soft fail)	v=spf1 a ip4:185.51.79.241 ip4:195.190.31.0/24 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 2026-10-13 22:24:44

www	185.51.79.130 (AS205984) (address records, no CNAME)
www vs bare domain	Same network kobberholm.dk: 185.51.79.130 (AS205984) www.kobberholm.dk: 185.51.79.130 (AS205984)
Wildcard	Yes: any name under the zone resolves

🔎 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#

111ms

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

🏷️ SOA#

87ms

Field	Value
Serial	2016061307
Primary NS (MNAME)	ns1.onwelcom.dk
Responsible (RNAME)	hostmaster@kobberholm.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

47ms

91ms

75ms

AAAA

74ms

TXT

318ms

CAA

73ms

HTTPS

35ms

TLSA

78ms

SOA

87ms

MTA-STS

50ms

DNSSEC

111ms

SRV

84ms

Total

595ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-05 23:17:07	2463ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-21 20:57:26 shown	595ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-17 11:54:01	834ms	2 NS 1 A 2 MX	🔓 Insecure