hornstrupkursuscenter.dk DNS records

🖥️ Nameservers2 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 Records1 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.178.24.186	600s	—	AS8075	Microsoft Corporation	52.160.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records2 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	hornstrupkursuscenter-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca04::e 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 52.101.181.153 52.101.68.36 52.101.73.19 52.101.73.8	mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am0pr04cu00500.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
5000	3600s	ms15224041.msv1.invalid	—	—	—

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 218ms

TXT Record
MS=ms40633912
skybrud6672ho.azurewebsites.net
v=spf1 a:smtp.waoomail.dk a:smtp.cbrain.dk a:smtpgw.wwi.dk a:smarthost.datalogik.dk a:mail2.info-connect.dk ip4:5.179.86.32/27 ip4:213.132.0.66/32 ip4:185.20.243.0/26 ip4:86.58.146.120 ip4:87.104.237.192/29 include:spf.protection.outlook.com include:spf.eu.signature365.net include:mail.techosting.dk -all

✉️ SPF

Policy	Record (hornstrupkursuscenter.dk)
-all (hard fail)	v=spf1 a:smtp.waoomail.dk a:smtp.cbrain.dk a:smtpgw.wwi.dk a:smarthost.datalogik.dk a:mail2.info-connect.dk ip4:5.179.86.32/27 ip4:213.132.0.66/32 ip4:185.20.243.0/26 ip4:86.58.146.120 ip4:87.104.237.192/29 include:spf.protection.outlook.com include:spf.eu.signature365.net include:mail.techosting.dk -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

🔗 TLSA / DANE

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

🔐 DNSSEC144ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082601
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

36ms

A

58ms

MX

42ms

AAAA

34ms

TXT

218ms

CAA

51ms

HTTPS

59ms

TLSA

595ms

SOA

0ms

MTA-STS

65ms

DNSSEC

144ms

SRV

103ms

Total

1241ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:40:07	1241ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 08:04:39	1512ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-26 14:32:23	3229ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-02 23:42:52	10028ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-06-26 01:23:18	750ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 11:41:18	1222ms	2 NS 1 A 2 MX	🔒 Secure	View