sundhus.dk DNS records

🖥️ Nameservers3 records 250ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.rackhosting.com	77.247.69.212	dns1.rackhosting.com	AS31590 Rackhosting.com ApS
dns2.rackhosting.com	45.32.187.211	dns2.rackhosting.com	AS20473 The Constant Company, LLC
dns3.rackhosting.com	77.247.69.213	dns3.rackhosting.com	AS31590 Rackhosting.com ApS

🌍 A Records1 records 264ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.247.78.2	86400s	vps189.rackhosting.com	AS31590	Rackhosting.com ApS	77.247.64.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 204ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	86400s	sundhus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::6 2a01:111:f403:ca09::e 52.101.68.39 52.101.68.8 52.101.73.12 52.101.73.15	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 264ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	50	0	5061	sipfed.online.lync.com

📝 TXT Records2 records 447ms

TXT Record
MS=ms95966555
v=spf1 mx ip4:77.247.73.192/26 ip4:77.247.78.3 a:sundhus.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (sundhus.dk)
-all (hard fail)	v=spf1 mx ip4:77.247.73.192/26 ip4:77.247.78.3 a:sundhus.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 / DANE

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

🔐 DNSSEC309ms

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

🏷️ SOA254ms

Field	Value
Serial	2020031301
Primary NS (MNAME)	dns3.rackhosting.com
Responsible (RNAME)	sbk@f10.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	10800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

250ms

A

264ms

MX

204ms

AAAA

215ms

TXT

447ms

CAA

206ms

HTTPS

191ms

TLSA

548ms

SOA

254ms

MTA-STS

217ms

DNSSEC

309ms

SRV

264ms

Total

1699ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-26 14:59:56	1699ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 18:54:27	843ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 14:02:33	4533ms	3 NS 1 A 1 MX	🔓 Insecure	View