kaj-christensen.dk

📜 Historical scan 2026-06-27 20:59:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kaj-christensen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 144.91.97.254 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by kajchristensen-dk0i.mail.protection.outlook.com. 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 224ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10	ns01.one.com	AS197495 One.com A/S
ns02.one.com	—	—	—

🌍 A Records#

1 records 236ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
144.91.97.254	360s	mail.justworks.dk	AS51167	Contabo GmbH	144.91.64.0/18	🇫🇷 France	Lauterbourg

📧 MX Records#

1 records 205ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	360s	kajchristensen-dk0i.mail.protection.outlook.com	2a01:111:f403:ca09::3 2a01:111:f403:ca09::4 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 52.101.68.0 52.101.68.10 52.101.73.12 52.101.73.2	mail-am6pr04cu00303.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com
🔶 Autoconfig	kaj-christensen.dk → 144.91.97.254

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 305ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 401ms

TXT Record
ms=ms44019888
v=spf1 include:spf.protection.outlook.com include:_spf.justworks.dk ~all

✉️ SPF#

Policy	Record (kaj-christensen.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:_spf.justworks.dk ~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 10:09:17

www CNAME	kaj-christensen.dk (all on kaj-christensen.dk) → 144.91.97.254 (AS51167)
www vs bare domain	Same network kaj-christensen.dk: 144.91.97.254 (AS51167) www.kaj-christensen.dk: 144.91.97.254 (AS51167)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 13/10 · policy: ~all

error 13 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.kaj-christensen.dk	kaj-christensen.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

340ms

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

🏷️ SOA#

164ms

Field	Value
Serial	2022072500
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	support@justworks.dk
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-21 09:42:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-11-19
Expires	2026-12-31 (67d)

🔗 Same registrant#

5 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).

Domain	Registrar
bilsyn-svenstrup.dk	Punktum dk A/S (direct)
bilsynsvenstrup.dk	Punktum dk A/S (direct)
boschcarservicesvenstrup.dk	Punktum dk A/S (direct)
kajchristensen.dk	Punktum dk A/S (direct)
subaru-motorsport.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

224ms

236ms

205ms

AAAA

172ms

TXT

401ms

CAA

172ms

HTTPS

299ms

TLSA

696ms

SOA

164ms

MTA-STS

199ms

DNSSEC

340ms

SRV

305ms

Total

1913ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:09:17	1598ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 04:12:48	994ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-27 12:14:30	14378ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-01 12:35:42	825ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-30 05:35:52	902ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-28 04:50:42	979ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 20:59:42 shown	1913ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 04:18:02	2090ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 18:17:17	1182ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 13:21:31	2432ms	2 NS 1 A 1 MX	🔓 Insecure