ziersen.dk

📜 Historical scan 2026-10-15 03:17:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ziersen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ziersen-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 41ms

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#

🌍

No A records found

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	43200s	ziersen-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::10 2a01:111:f403:ca3c::8 2a01:111:f403:ca3c::a 52.101.181.156 52.101.209.153 52.101.209.31 52.101.68.15	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db6pr03cu00107.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 → 52.98.149.136
🔶 Autoconfig	sipdir.online.lync.com

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 164ms

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

✉️ SPF#

Policy	Record (ziersen.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 2026-10-18 10:24:52

www CNAME	sipdir.online.lync.com (all on lync.com) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.ziersen.dk
www vs bare domain	Neither resolves ziersen.dk: no address www.ziersen.dk: no address
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.ziersen.dk	sipdir.online.lync.com

🔗 TLSA / DANE#

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

🔐 DNSSEC#

126ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

45ms

Field	Value
Serial	2026101301
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 2026-10-14 12:50:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-08-07
Expires	2027-10-31 (377d)

🔗 Same registrant#

2 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
love2kiss.dk	Punktum dk A/S (direct)
mammaspace.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

42ms

41ms

AAAA

41ms

TXT

164ms

CAA

35ms

HTTPS

34ms

TLSA

678ms

SOA

45ms

MTA-STS

89ms

DNSSEC

126ms

SRV

112ms

Total

1602ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 10:24:52	1493ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-15 03:17:09 shown	1602ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-12 22:43:47	1409ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-01 02:28:02	831ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-21 18:47:07	1346ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-26 04:55:23	7231ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-23 01:57:14	7195ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-23 21:41:46	751ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-23 05:17:22	1962ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-18 07:09:49	1321ms	2 NS 0 A 1 MX	🔒 Secure