404.dk DNS records

🖥️ Nameservers2 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
brenda.ns.cloudflare.com	—	—	—
stan.ns.cloudflare.com	—	—	—

🌍 A Records2 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.205	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.192.55	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	—	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
32	—	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
50	—	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:c037	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—
2606:4700:3033::6815:41cd	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—

🔐 HTTPS Records1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.205,172.67.192.55 ech=AEX+DQBBzAAgACCRSl2GarTD7edzme/SRSjBGfCZcUyEhedgk/e1csdNQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c037,2606:4700:3033::6815:41cd

📝 TXT Records2 records 92ms

TXT Record
google-site-verification=AxFN59ZruvW0UuHHdOuUmXFsCssQGKs1jhb9kd_feUQ
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF

Policy	Record (404.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC

Policy	Record (_dmarc.404.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 / DANE9 records 77ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…

🔐 DNSSEC114ms

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

🏷️ SOA33ms

Field	Value
Serial	2406775204
Primary NS (MNAME)	brenda.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

36ms

A

37ms

MX

34ms

AAAA

40ms

TXT

92ms

CAA

30ms

HTTPS

34ms

TLSA

77ms

SOA

33ms

MTA-STS

52ms

DNSSEC

114ms

SRV

0ms

Total

1113ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-08 22:05:46	1918ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-02 19:04:10	1631ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-07-13 19:12:51	9825ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-06-30 17:02:12	1020ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-06-16 12:37:15	1113ms	2 NS 2 A 3 MX	🔓 Insecure	View