catsub.dk DNS records

🖥️ Nameservers2 records 89ms

Nameserver	IP addresses	PTR	ASN / ISP
memphis.ns.cloudflare.com	108.162.195.189 162.159.44.189 172.64.35.189 2606:4700:58::a29f:2cbd 2803:f800:50::6ca2:c3bd 2a06:98c1:50::ac40:23bd	memphis.ns.cloudflare.com memphis.ns.cloudflare.com memphis.ns.cloudflare.com memphis.ns.cloudflare.com memphis.ns.cloudflare.com memphis.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nena.ns.cloudflare.com	108.162.194.161 162.159.38.161 172.64.34.161 2606:4700:50::a29f:26a1 2803:f800:50::6ca2:c2a1 2a06:98c1:50::ac40:22a1	nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com nena.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.66.250	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.166.141	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.166.141
🔶 Autoconfig	104.21.66.250

🔷 AAAA Records (IPv6)2 records 89ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:42fa	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:a68d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 100ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.66.250,172.67.166.141 ech=AEX+DQBB/gAgACAnuCLIXezknBDnLGwSJB4sSOJ0J0KiFt51ZX5amyeyPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:42fa,2606:4700:3032::ac43:a68d

📝 TXT Records1 records 322ms

TXT Record
google-site-verification=BqssgeC7Z6JLJ_A2P8s3jbyxpz-pnvd8o3fjkTTp2Jw

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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)

🔐 DNSSEC184ms

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	2413388792
Primary NS (MNAME)	memphis.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

89ms

A

79ms

MX

62ms

AAAA

89ms

TXT

322ms

CAA

100ms

HTTPS

100ms

TLSA

88ms

SOA

0ms

MTA-STS

143ms

DNSSEC

184ms

SRV

143ms

Total

960ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 10:43:20	960ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 20:55:09	1305ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-19 21:58:45	894ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-07 13:21:34	1199ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-29 13:40:10	930ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-27 19:47:40	777ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 23:12:29	876ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-16 19:45:19	382ms	2 NS 2 A 0 MX	🔓 Insecure	View