kaerbolig.dk

Records from scan: 2026-10-01 07:42:19 · 639ms total · last checked 2026-10-16 20:31 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kaerbolig.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 24 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.51 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by kaerbolig-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 42ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.51	3600s	linux25.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	kaerbolig-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca21::a 2a01:111:f403:ca21::c 2a01:111:f403:ca48::c 52.101.103.140 52.101.68.8 52.101.73.120 52.101.73.153	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-as8pr05cu00401.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
🔶 Autoconfig	185.21.41.51

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 139ms

TXT Record
MS=ms70755279
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (kaerbolig.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-11 11:57:28

www	185.21.41.51 (AS48854) (address records, no CNAME)
www vs bare domain	Same network kaerbolig.dk: 185.21.41.51 (AS48854) www.kaerbolig.dk: 185.21.41.51 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

70ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2026031901
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 2026-10-07 11:18:02

Field	Value
Registrar	CURANET A/S
Registered	2024-10-24
Expires	2026-10-23 (6d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

40ms

35ms

AAAA

37ms

TXT

139ms

CAA

29ms

HTTPS

49ms

TLSA

175ms

SOA

44ms

MTA-STS

51ms

DNSSEC

70ms

SRV

57ms

Total

639ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 07:42:19 shown	639ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 01:46:28	3039ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 19:16:27	1106ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 02:05:46	1864ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 15:26:50	1250ms	2 NS 1 A 1 MX	🔒 Secure