kortermann-it.dk DNS records

🖥️ Nameservers2 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.65	300s	linux20.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	kortermannit-dk02e.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::9 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 52.101.103.137 52.101.68.10 52.101.73.30 52.101.73.4	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 52.98.154.152

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 67ms

Service	Priority	Weight	Port	Target
_sip._tcp	0	0	443	sipdir.online.lync.com
_sipfederationtls._tcp	0	0	5061	sipfed.online.lync.com

📝 TXT Records5 records 817ms

TXT Record
ahrefs-site-verification_6fbd38299dfc20e7806db3a34fe02b35a0919907b139b3fb29f73b8b90048b4c
bw=htqsFKTY9kPi8NxRDhLZZ32eJabe9XkGC+xeB7rYJT7k
FOxJx0lmah6uSxdojiTEtgwNxdjTNpkFiVQ/gdf6kzY=
google-site-verification=Ud-sz-xC8pQ2DWS5GIlg0b--Uaoj57H_fdVr5SSDNaQ
v=spf1 +a +mx include:spfinclude.sikkermail.dk include:spf.protection.outlook.com include:spf.securesmtp.dk include:servers.mcsv.net ip4:94.231.105.150 -all

✉️ SPF

Policy	Record (kortermann-it.dk)
-all (hard fail)	v=spf1 +a +mx include:spfinclude.sikkermail.dk include:spf.protection.outlook.com include:spf.securesmtp.dk include:servers.mcsv.net ip4:94.231.105.150 -all

📨 DMARC

Policy	Record (_dmarc.kortermann-it.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:683056edcfa2e@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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.kortermann-it.dk	c7c0d82b-6c7e-425c-8568-c2aa2f8a447c.c-699b.tx.auth.certifytheweb.com
TXT	c7c0d82b-6c7e-425c-8568-c2aa2f8a447c.c-699b.tx.auth.certifytheweb.com	1i139IHt3Noht1skKwQH_M2y34tefFvZASmqxf--Zyg
TXT	c7c0d82b-6c7e-425c-8568-c2aa2f8a447c.c-699b.tx.auth.certifytheweb.com	rtKb0mvnbI9Be0W1UAm14j7-DDlYqIarmUCa4Swfr0Y

🔗 TLSA / DANE

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

🔐 DNSSEC95ms

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

🏷️ SOA0ms

Field	Value
Serial	2026060201
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

47ms

MX

56ms

AAAA

48ms

TXT

817ms

CAA

50ms

HTTPS

43ms

TLSA

182ms

SOA

0ms

MTA-STS

60ms

DNSSEC

95ms

SRV

67ms

Total

1404ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 09:18:32	1404ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 02:36:40	2030ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 18:50:58	1675ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 18:06:32	3596ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 22:21:27	1148ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:20:22	4941ms	2 NS 1 A 1 MX	🔒 Secure	View