sprog-kursus.dk DNS records

🖥️ Nameservers2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns07.sac-it.dk	85.235.243.63	ns07.sac-it.dk	AS3308 Norlys Digital A/S
ns08.sac-it.dk	128.76.60.63	ns08.sac-it.dk	AS3292 TDC Holding A/S

🌍 A Records1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.118	3266s	linux102.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records3 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	82s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
10	82s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
30	82s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 121ms

TXT Record
v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.curanet.dk -all

✉️ SPF

Policy	Record (sprog-kursus.dk)
-all (hard fail)	v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.curanet.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 / DANE6 records 51ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…

🔐 DNSSEC91ms

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	2026082701
Primary NS (MNAME)	ns07.sac-it.dk
Responsible (RNAME)	hostmaster@sprog-kursus.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

30ms

A

30ms

MX

34ms

AAAA

24ms

TXT

121ms

CAA

31ms

HTTPS

31ms

TLSA

51ms

SOA

0ms

MTA-STS

45ms

DNSSEC

91ms

SRV

43ms

Total

705ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:10:33	705ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 02:38:42	9123ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-14 13:50:27	1107ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-06 12:06:27	1506ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-01 05:39:04	1282ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 23:02:14	3099ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-16 02:49:50	2055ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-09 02:01:58	17665ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-07-03 12:51:56	2707ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-28 14:09:51	674ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-20 14:15:58	664ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-17 11:43:14	1280ms	2 NS 1 A 3 MX	🔓 Insecure	View