john-ulrik.dk

Records from scan: 2026-09-30 14:09:19 · 478ms total · last checked 2026-10-16 06:52 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

john-ulrik.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was registered on 15 February 2001 (WHOIS) and 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 45ms

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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.130	86400s	web02.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 65ms

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	185.51.79.130
🔶 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 226ms

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

✉️ SPF#

Policy	Record (john-ulrik.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#

checked 2026-10-07 15:30:19

www	185.51.79.130 (AS205984) (address records, no CNAME)
www vs bare domain	Same network john-ulrik.dk: 185.51.79.130 (AS205984) www.john-ulrik.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#

96ms

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

🏷️ SOA#

49ms

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

📋 Registration#

WHOIS fetched 2026-10-16 02:27:24

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-02-15
Expires	2027-03-31 (165d)

🔗 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#

45ms

48ms

65ms

AAAA

54ms

TXT

226ms

CAA

63ms

HTTPS

34ms

TLSA

57ms

SOA

49ms

MTA-STS

87ms

DNSSEC

96ms

SRV

84ms

Total

478ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:09:19 shown	478ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-21 08:48:45	534ms	2 NS 1 A 2 MX	🔓 Insecure
2026-08-27 01:09:58	2641ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-26 03:56:53	1063ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-18 04:33:08	1023ms	2 NS 1 A 2 MX	🔓 Insecure