cortexgruppen.dk DNS records

🖥️ Nameservers5 records 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.102.28.49	3600s	—	AS8075	Microsoft Corporation	23.102.0.0/16	🇮🇪 Ireland	Dublin

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cortexgruppen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca21::c 2a01:111:f403:ca38::8 52.101.68.12 52.101.68.5 52.101.73.145 52.101.73.155	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.8
🔶 Autoconfig	cortexgruppen.dk → 23.102.28.49

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 223ms

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

📝 TXT Records2 records 299ms

TXT Record
MS=ms47918337
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com -all

✉️ SPF

Policy	Record (cortexgruppen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com -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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.cortexgruppen.dk	cortexgruppen.dk

🔗 TLSA / DANE

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

🔐 DNSSEC221ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@cortexgruppen.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

51ms

A

47ms

MX

41ms

AAAA

195ms

TXT

299ms

CAA

68ms

HTTPS

47ms

TLSA

173ms

SOA

0ms

MTA-STS

205ms

DNSSEC

221ms

SRV

223ms

Total

931ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 12:37:26	931ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 16:25:38	898ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-26 16:18:10	1752ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 11:44:55	3158ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-14 09:45:32	5637ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-07 04:32:59	2201ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-04 09:12:58	10505ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-23 09:47:45	1601ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-16 16:37:09	1226ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-11 10:54:46	3211ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-03 17:37:59	1742ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-26 03:08:16	1216ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 05:44:57	2954ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 22:35:31	1816ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 22:30:39	2773ms	5 NS 1 A 1 MX	🔓 Insecure	View