sundthus.dk DNS records

🖥️ Nameservers3 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.mcb.dk	178.23.177.69 2a00:1cf0:0:9::69	mail.mcb.dk mail.mcb.dk	AS47527 DLX A/S AS47527 DLX A/S
ns2.mcb.dk	195.182.36.51 2a00:1cf0:0:5::3	ns2.lynero.net ns2.lynero.net	AS47527 DLX A/S AS47527 DLX A/S
ns3.mcb.dk	185.208.212.121 2a00:1b19:2:1::121	ns3.lynero.net ns3.lynero.net	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.23.177.67	300s	mcb-c02.lynero.net	AS47527	DLX A/S	178.23.176.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sundthus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca04::f 2a01:111:f403:ca09::3 52.101.68.10 52.101.68.16 52.101.68.29 52.101.68.39	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 52ms

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

📝 TXT Records2 records 131ms

TXT Record
MS=ms84537449
v=spf1 include:spf.protection.outlook.com include:spf.mcb.dk -all

✉️ SPF

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

🔐 DNSSEC104ms

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	2026051202
Primary NS (MNAME)	ns.mcb.dk
Responsible (RNAME)	hostmaster@mcb.dk
Refresh	10800s
Retry	3600s
Expire	2592000s
Minimum (neg-cache TTL)	38400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

37ms

A

46ms

MX

25ms

AAAA

47ms

TXT

131ms

CAA

43ms

HTTPS

38ms

TLSA

679ms

SOA

0ms

MTA-STS

52ms

DNSSEC

104ms

SRV

52ms

Total

1574ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 03:08:49	1574ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-25 06:29:34	1490ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 13:02:29	831ms	3 NS 1 A 1 MX	🔓 Insecure	View