housingdanmark.dk DNS records

🖥️ Nameservers4 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.28.164.195	3600s	ec2-52-28-164-195.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	52.24.0.0/13	🇩🇪 Germany	Frankfurt am Main

📧 MX Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	housingdanmark-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::24 2a01:111:f403:ca09::b 2a01:111:f403:ca38::8 52.101.68.27 52.101.68.3 52.101.73.12 52.101.73.28	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00204.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
🔶 Autoconfig	52.28.164.195

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 174ms

TXT Record
MS=ms38660822
v=spf1 include:spf.protection.outlook.com -all
v=spf1 include:spf.simply.com ~all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (housingdanmark.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all
~all (soft fail)	v=spf1 include:spf.simply.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)

🔐 DNSSEC109ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2021032200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

33ms

MX

47ms

AAAA

36ms

TXT

174ms

CAA

56ms

HTTPS

35ms

TLSA

647ms

SOA

0ms

MTA-STS

84ms

DNSSEC

109ms

SRV

75ms

Total

1484ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 23:41:28	1484ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 07:33:27	885ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:40:45	280ms	0 NS 0 A 0 MX	❓ Unknown	View