simtek.dk DNS records

🖥️ Nameservers2 records 35ms

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 Records

🌍

No A records found

📧 MX Records2 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	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	3600s	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

📧 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 Records2 records 171ms

TXT Record
MS=ms10036712
v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (simtek.dk)
-all (hard fail)	v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.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

🔗 TLSA / DANE4 records 59ms

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

🔐 DNSSEC76ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026070901
Primary NS (MNAME)	ns07.sac-it.dk
Responsible (RNAME)	hostmaster@simtek.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-08-13 15:59:24

Field	Value
Registrar	SAC-IT A/S
Registered	2017-01-02
Expires	2027-01-31 (150d)

📋 WHOIS

⏱️ Lookup Timing

NS

35ms

A

34ms

MX

30ms

AAAA

31ms

TXT

171ms

CAA

32ms

HTTPS

29ms

TLSA

59ms

SOA

0ms

MTA-STS

42ms

DNSSEC

76ms

SRV

71ms

Total

947ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:08:50	600ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-26 14:02:51	2735ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-26 07:33:30	716ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-20 17:28:44	4402ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-13 15:49:04	4217ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-07 00:47:33	9050ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-08-05 23:35:01	2047ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-07-23 18:03:49	964ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-07-16 10:20:36	1013ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-07-14 19:57:47	947ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-07-03 14:48:26	634ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-06-30 16:04:50	700ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-06-24 14:46:04	746ms	2 NS 0 A 2 MX	🔓 Insecure	View
2026-06-18 04:37:10	1021ms	2 NS 0 A 2 MX	🔓 Insecure	View