resistent.dk DNS records

🖥️ Nameservers3 records 52ms

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

🌍 A Records1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
86.52.58.213	3600s	86-52-58-213.norlyscustomer.net	AS39642	Sinal A/S	86.52.0.0/16	🇩🇰 Denmark	Viborg

📧 MX Records1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	resistent-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::b 2a01:111:f403:ca09::20 2a01:111:f403:ca09::8 52.101.103.137 52.101.68.21 52.101.68.3 52.101.73.153	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.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 87ms

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

📝 TXT Records3 records 159ms

TXT Record
MS=ms21126229
MS=msXXXXXXXX
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF

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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.resistent.dk	297Z40jvMpAeMcpZn9d6LrT49Dgjee-I7ZhT0HwhqEY
TXT	_acme-challenge.resistent.dk	CJHYNhvE91xX_3sVgbZPUplRHa0J1PN9v2isKePr0JM
TXT	_acme-challenge.resistent.dk	Gks948vNmIgIs9H1yXU-21MBzQidgZyPsDCMIQd74GM
TXT	_acme-challenge.resistent.dk	kgI3Un2bTaiEfmz_sTKLosDzVfp_B9ZYjMUKy71vIEo
TXT	_acme-challenge.resistent.dk	rZPyv36Q1k8eTIcbPBTeNAOoumuMP-w2_8zSn2QwU6E
TXT	_acme-challenge.resistent.dk	u3zPHTLb9wRRZZez7tLuysiX4ZuHgMPO3K-2mrbshig

🔗 TLSA / DANE

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

🔐 DNSSEC92ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081801
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

52ms

A

49ms

MX

50ms

AAAA

40ms

TXT

159ms

CAA

40ms

HTTPS

54ms

TLSA

371ms

SOA

0ms

MTA-STS

78ms

DNSSEC

92ms

SRV

87ms

Total

963ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 03:44:13	963ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 11:20:15	2165ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 01:04:54	2359ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 19:56:07	4031ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 04:42:51	1162ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 08:54:51	924ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:44:25	2538ms	3 NS 1 A 1 MX	🔒 Secure	View