flt.dk DNS records

🖥️ Nameservers4 records 43ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.221.124.121	3600s	wp01.comasys.dk	AS51377	CoMaSys ApS	193.221.124.0/24	🇩🇰 Denmark	—

📧 MX Records1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	305s	flt-dk.v-v1.mx.microsoft	2a01:111:f403:ca04::10 2a01:111:f403:ca04::7 2a01:111:f403:ca04::e 2a01:111:f403:ca09::5 52.101.68.3 52.101.73.15 52.101.73.19 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 97ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:_spf.comasys.dk ~all

✉️ SPF

Policy	Record (flt.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:_spf.comasys.dk ~all

📨 DMARC

Policy	Record (_dmarc.flt.dk)
p=reject	v=DMARC1; p=reject;

📬 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 77ms

Service / Owner	Type	Cert association
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.flt-dk.v-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…

🔐 DNSSEC109ms

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

🏷️ SOA37ms

Field	Value
Serial	2025040704
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

43ms

A

43ms

MX

45ms

AAAA

49ms

TXT

97ms

CAA

35ms

HTTPS

39ms

TLSA

77ms

SOA

37ms

MTA-STS

39ms

DNSSEC

109ms

SRV

52ms

Total

688ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 14:44:36	796ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 20:12:50	737ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 19:05:21	2357ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 17:34:43	688ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 12:01:10	894ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 09:52:48	878ms	4 NS 1 A 1 MX	🔒 Secure	View