kosthou.dk

📜 Historical scan 2026-07-03 01:35:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kosthou.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 3 February 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.254.55.45 is hosted by Voxility LLP (AS3223) in United Kingdom. Mail is handled by kosthou-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.254.55.45	3600s	gb1.wpx.net	AS3223	Voxility LLP	5.254.52.0/22	🇬🇧 United Kingdom	London

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	kosthou-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::e 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 52.101.68.12 52.101.68.39 52.101.73.1 52.101.73.15	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 73ms

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

📝 TXT Records#

3 records 108ms

TXT Record
google-site-verification=RcrUUR67eEDnlso7r0k5X8XnxRWnxVV0lsILbM7Lzmg
MS=ms17542899
v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all

✉️ SPF#

Policy	Record (kosthou.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org ~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 2026-10-10 04:45:35

www	5.254.55.45 (AS3223) (address records, no CNAME)
www vs bare domain	Same network kosthou.dk: 5.254.55.45 (AS3223) www.kosthou.dk: 5.254.55.45 (AS3223)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
s1	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

42ms

Field	Value
Serial	2026042305
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-13 06:14:48

Field	Value
Registrar	CURANET A/S
Registered	2022-02-03
Expires	2027-02-02 (105d)

🔗 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#

28ms

58ms

31ms

AAAA

32ms

TXT

108ms

CAA

41ms

HTTPS

52ms

TLSA

457ms

SOA

42ms

MTA-STS

62ms

DNSSEC

114ms

SRV

73ms

Total

986ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-15 06:22:13	1365ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 00:25:54	911ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 01:35:17 shown	986ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 06:42:32	1316ms	2 NS 1 A 1 MX	🔒 Secure