f3.dk DNS records

🖥️ Nameservers2 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simpleagencygroup.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simpleagencygroup.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.247	3600s	vps3.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 23ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	audiovector-com.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::8 2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 52.101.68.12 52.101.73.19 52.101.73.26 52.101.73.4	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.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 75ms

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

📝 TXT Records3 records 105ms

TXT Record
MS=ms59375921
trustpilot-one-time-verification-id=5d1dec60-3025-48ed-8922-a58976f5a938
v=spf1 ip4:152.115.63.140 include:spf.smtp2go.com include:smtproutes.com include:smtpout.com include:_spf.simpledigital.dk include:spf.protection.outlook.com include:spf.mandrillapp.com -all

✉️ SPF

Policy	Record (f3.dk)
-all (hard fail)	v=spf1 ip4:152.115.63.140 include:spf.smtp2go.com include:smtproutes.com include:smtpout.com include:_spf.simpledigital.dk include:spf.protection.outlook.com include:spf.mandrillapp.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)

🔐 DNSSEC102ms

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

🏷️ SOA24ms

Field	Value
Serial	2025081101
Primary NS (MNAME)	ns1.simpleagencygroup.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

57ms

A

36ms

MX

23ms

AAAA

27ms

TXT

105ms

CAA

34ms

HTTPS

21ms

TLSA

159ms

SOA

24ms

MTA-STS

41ms

DNSSEC

102ms

SRV

75ms

Total

828ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-02 10:46:34	828ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 14:31:39	1692ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 15:05:35	4812ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 22:21:34	1039ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:10:38	1143ms	2 NS 1 A 1 MX	🔒 Secure	View