rosenkrantz.dk

📜 Historical scan 2026-09-03 10:35:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rosenkrantz.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.221.196.247 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by rosenkrantz-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 43ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.221.196.247	3600s	—	AS51468	One.com A/S	91.221.196.0/23	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rosenkrantz-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::8 2a01:111:f403:ca09::b 2a01:111:f403:ca21::c 52.101.103.143 52.101.73.145 52.101.73.153 52.101.73.155	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

1 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
1234:1234:1234:1234:1234:1234:1234:1234	43200s	—	—	—	—	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 63ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 165ms

TXT Record
MS=ms62436225
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (rosenkrantz.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#

latest probe, not this scan · checked 2026-10-22 07:00:34

www	91.221.196.247 (AS51468) (address records, no CNAME)
www vs bare domain	Same network rosenkrantz.dk: 91.221.196.247 1234:1234:1234:1234:1234:1234:1234:1234 (AS51468) www.rosenkrantz.dk: 91.221.196.247 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
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#

82ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-24 02:47:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-02-24
Expires	2027-03-31 (157d)

🔗 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#

43ms

39ms

38ms

AAAA

40ms

TXT

165ms

CAA

27ms

HTTPS

55ms

TLSA

181ms

SOA

0ms

MTA-STS

57ms

DNSSEC

82ms

SRV

63ms

Total

782ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 07:00:34	532ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 06:19:47	1213ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 10:35:28 shown	782ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 10:26:35	857ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 02:07:38	927ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 22:57:37	1265ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-27 06:04:33	1203ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 02:30:16	9302ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 08:57:45	1067ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 11:16:46	1677ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 21:27:32	787ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 15:36:57	1193ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 23:16:49	719ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:52:24	2288ms	2 NS 1 A 1 MX	🔒 Secure