nykjaer-isolering.dk

📜 Historical scan 2026-06-18 10:58:37 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nykjaer-isolering.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was registered on 15 February 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.79.250 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mailfilter.onwelcom.dk, mx2.onwelcom.dk. The zone is DNSSEC-signed but currently fails validation, 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 25ms

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 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.250	86400s	web01.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mailfilter.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
20	86400s	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.51.79.250
🔶 Autoconfig	185.51.79.250

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 199ms

TXT Record
v=spf1 a ip4:185.51.79.241 ip4:195.190.31.0/24 a:mail.onwelcom.dk mx ~all

✉️ SPF#

Policy	Record (nykjaer-isolering.dk)
~all (soft fail)	v=spf1 a ip4:185.51.79.241 ip4:195.190.31.0/24 a:mail.onwelcom.dk 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 2026-10-14 03:52:34

www	185.51.79.250 (AS205984) (address records, no CNAME)
www vs bare domain	Same network nykjaer-isolering.dk: 185.51.79.250 (AS205984) www.nykjaer-isolering.dk: 185.51.79.250 (AS205984)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

91ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'nykjaer-isolering.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

27ms

Field	Value
Serial	2016120107
Primary NS (MNAME)	ns1.onwelcom.dk
Responsible (RNAME)	hostmaster@nykjaer-isolering.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-11 13:47:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-02-15
Expires	2027-03-31 (155d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

25ms

36ms

25ms

AAAA

28ms

TXT

199ms

CAA

28ms

HTTPS

28ms

TLSA

178ms

SOA

27ms

MTA-STS

90ms

DNSSEC

91ms

SRV

305ms

Total

831ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 17:30:24	590ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-29 17:47:30	568ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-23 02:36:45	557ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-18 10:58:37 shown	831ms	2 NS 1 A 2 MX	⚠️ Bogus