kursus.dk DNS records

🖥️ Nameservers2 records 50ms

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 Records1 records 44ms

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 Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	kursus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca09::24 2a01:111:f403:ca09::f 52.101.68.5 52.101.73.16 52.101.73.19 52.101.73.22	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.24
🔶 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 Records1 records 180ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC81ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

44ms

MX

47ms

AAAA

69ms

TXT

180ms

CAA

36ms

HTTPS

48ms

TLSA

369ms

SOA

0ms

MTA-STS

84ms

DNSSEC

81ms

SRV

86ms

Total

940ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 08:12:47	940ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 08:39:13	2220ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 21:50:26	4789ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 02:00:13	5799ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 03:59:54	1942ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 20:46:01	749ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 02:19:38	1681ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 08:01:57	1093ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 16:44:00	869ms	2 NS 1 A 1 MX	🔒 Secure	View