3fa.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
lisa.ns.cloudflare.com	108.162.192.131 172.64.32.131 173.245.58.131 2606:4700:50::adf5:3a83 2803:f800:50::6ca2:c083 2a06:98c1:50::ac40:2083	lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
max.ns.cloudflare.com	108.162.193.132 172.64.33.132 173.245.59.132 2606:4700:58::adf5:3b84 2803:f800:50::6ca2:c184 2a06:98c1:50::ac40:2184	max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.37.93	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.206.217	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:255d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:ced9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 40ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.37.93,172.67.206.217 ech=AEX+DQBB4gAgACAN+ft5z09BytN93zUiRR9hMFiQ3jKuLHKnk+XdwGTYdQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:255d,2606:4700:3035::ac43:ced9

📝 TXT Records1 records 164ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (3fa.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.3fa.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s;

📬 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)

🔐 DNSSEC74ms

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

🏷️ SOA0ms

Field	Value
Serial	2410517385
Primary NS (MNAME)	lisa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

36ms

MX

35ms

AAAA

37ms

TXT

164ms

CAA

37ms

HTTPS

40ms

TLSA

45ms

SOA

0ms

MTA-STS

43ms

DNSSEC

74ms

SRV

43ms

Total

855ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-28 01:57:02	8910ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-27 01:13:47	855ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 20:56:24	679ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 17:22:03	1192ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 12:45:53	473ms	2 NS 2 A 0 MX	🔓 Insecure	View