sack.dk DNS records

🖥️ Nameservers2 records 12ms

Nameserver	IP addresses	PTR	ASN / ISP
chuck.ns.cloudflare.com	108.162.193.86 172.64.33.86 173.245.59.86 2606:4700:58::adf5:3b56 2803:f800:50::6ca2:c156 2a06:98c1:50::ac40:2156	chuck.ns.cloudflare.com chuck.ns.cloudflare.com chuck.ns.cloudflare.com chuck.ns.cloudflare.com chuck.ns.cloudflare.com chuck.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ines.ns.cloudflare.com	108.162.192.164 172.64.32.164 173.245.58.164 2606:4700:50::adf5:3aa4 2803:f800:50::6ca2:c0a4 2a06:98c1:50::ac40:20a4	ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 17ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.20	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.169.44	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 8ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	s1.mozo.dk	188.165.255.47	ns337173.ip-188-165-255.eu	AS16276 OVH SAS

🔷 AAAA Records (IPv6)2 records 9ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:a92c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—
2606:4700:3037::6815:5f14	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000::/42	—	—

🔐 HTTPS Records1 records 21ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.20,172.67.169.44 ech=AEX+DQBBtAAgACCxF0qDrf3HGyuDjEjgYKtY3twydk0vEvER5t8HAsGGNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a92c,2606:4700:3037::6815:5f14

📝 TXT Records3 records 64ms

TXT Record
facebook-domain-verification=723aimb2v15oh9mf4hobh5chs21je7
v=spf1 a mx include:spf.ms.mozo.dk ~all
v=spf1 ip4:188.165.255.47 -all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (sack.dk)
~all (soft fail)	v=spf1 a mx include:spf.ms.mozo.dk ~all
-all (hard fail)	v=spf1 ip4:188.165.255.47 -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)

🔐 DNSSEC125ms

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

🏷️ SOA8ms

Field	Value
Serial	2412078382
Primary NS (MNAME)	chuck.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

12ms

A

17ms

MX

8ms

AAAA

9ms

TXT

64ms

CAA

7ms

HTTPS

21ms

TLSA

146ms

SOA

8ms

MTA-STS

15ms

DNSSEC

125ms

SRV

0ms

Total

1638ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 14:52:15	1638ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-15 12:08:11	3935ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-27 10:33:59	864ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 11:22:58	1067ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 21:37:41	1098ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 10:58:43	1185ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 04:35:21	1167ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 16:19:42	1488ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 07:02:11	1195ms	2 NS 2 A 1 MX	🔓 Insecure	View