zkurs.dk

📜 Historical scan 2026-06-20 16:05:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zkurs.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 November 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.185.159.144 is hosted by Squarespace, Inc. (AS53831) in United States. Mail is handled by zkurs-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 74ms

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#

4 records 73ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zkurs-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::9 2a01:111:f403:ca09::8 2a01:111:f403:ca09::d 52.101.68.18 52.101.68.21 52.101.68.36 52.101.73.1	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am3pr04cu00501.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 156ms

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

📝 TXT Records#

3 records 393ms

TXT Record
google-site-verification=luuG30sQpoxnGk89eLaHsAgQ1hUQtyuxs5jueg3VfH4
MS=ms81563329
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (zkurs.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.zkurs.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email

📬 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 2026-10-24 21:50:42

www CNAME	ext-cust.squarespace.com (all on squarespace.com) → 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
www vs bare domain	Same network zkurs.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.zkurs.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-zkurs-dk._domainkey.zkurs.onmicrosoft.com	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

234ms

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

🏷️ SOA#

64ms

Field	Value
Serial	2026062003
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 22:08:01

Field	Value
Registrar	ONE.COM A/S
Registered	2007-11-20
Expires	2026-11-30 (33d)

🔗 Same registrant#

3 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
christinaqvist.dk	ONE.COM A/S
mikkelabildgaard.dk	ONE.COM A/S
sensevanilla.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

74ms

73ms

118ms

AAAA

90ms

TXT

393ms

CAA

82ms

HTTPS

91ms

TLSA

235ms

SOA

64ms

MTA-STS

110ms

DNSSEC

234ms

SRV

156ms

Total

1504ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 21:50:42	1314ms	2 NS 4 A 1 MX	🔒 Secure
2026-10-23 04:47:33	1527ms	2 NS 4 A 1 MX	🔒 Secure
2026-10-19 22:36:58	1742ms	2 NS 4 A 1 MX	🔒 Secure
2026-09-28 01:07:53	1525ms	2 NS 4 A 1 MX	🔒 Secure
2026-09-22 23:16:58	2136ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-25 19:24:26	2833ms	2 NS 4 A 1 MX	🔒 Secure
2026-08-20 18:13:41	2118ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-28 15:43:04	6208ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-26 08:43:26	3905ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-23 18:54:24	1123ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 06:46:17	2286ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-20 16:05:45 shown	1504ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-20 06:28:12	1472ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-20 04:06:15	3094ms	2 NS 4 A 1 MX	🔒 Secure
2026-06-18 04:11:38	880ms	2 NS 4 A 1 MX	🔒 Secure