kursus.dk

Records from scan: 2026-10-09 01:00:05 · 1229ms total · last checked 2026-10-17 13:33 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kursus.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.152.141 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by kursus-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 36ms

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
93.191.152.141	3600s	vdom13.network.zitcom.dk	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	kursus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 52.101.185.21 52.101.73.120 52.101.73.153 52.101.91.162	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00302.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
🔶 Autoconfig	93.191.152.141

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 286ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.kursus.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6597c839d86ee@dmarc-dk.centerasecurity.com;

📬 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 2026-10-09 01:00:05

www	93.191.152.141 (AS48854) (address records, no CNAME)
www vs bare domain	Same network kursus.dk: 93.191.152.141 (AS48854) www.kursus.dk: 93.191.152.141 (AS48854)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u1998947.wl198.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u1998947.wl198.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-kursus-dk._domainkey.tack.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-kursus-dk._domainkey.tack.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

74ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2026092001
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 2026-10-15 07:28:43

Field	Value
Registrar	ONE.COM A/S
Registered	1997-01-31
Expires	2027-04-30 (194d)

🔗 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
kursus-kompagniet.dk	ONE.COM A/S
kursuskompagniet.dk	ONE.COM A/S
speakerslounge.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

36ms

39ms

AAAA

41ms

TXT

286ms

CAA

38ms

HTTPS

58ms

TLSA

630ms

SOA

38ms

MTA-STS

64ms

DNSSEC

74ms

SRV

226ms

Total

1229ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 01:00:05 shown	1229ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 08:39:11	903ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 15:58:09	968ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 14:01:39	1175ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 03:21:26	884ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 08:12:47	940ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 08:39:13	2220ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 21:50:26	4789ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 02:00:13	5799ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 03:59:54	1942ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 20:46:01	749ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 02:19:38	1681ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 08:01:57	1093ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 16:44:00	869ms	2 NS 1 A 1 MX	🔒 Secure