rs-systemer.dk DNS records

🖥️ Nameservers2 records 46ms

Nameserver	IP addresses	PTR	ASN / ISP
kenneth.ns.cloudflare.com	108.162.195.41 162.159.44.41 172.64.35.41 2606:4700:58::a29f:2c29 2803:f800:50::6ca2:c329 2a06:98c1:50::ac40:2329	kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com kenneth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tani.ns.cloudflare.com	108.162.192.224 172.64.32.224 173.245.58.224 2606:4700:50::adf5:3ae0 2803:f800:50::6ca2:c0e0 2a06:98c1:50::ac40:20e0	tani.ns.cloudflare.com tani.ns.cloudflare.com tani.ns.cloudflare.com tani.ns.cloudflare.com tani.ns.cloudflare.com tani.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.59.247	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.186.74	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:ba4a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:3bf7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 45ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.59.247,172.67.186.74 ech=AEX+DQBB7wAgACBE1Eqlr/7DkDPvKduVzDj+mly51qFBYNzqLjPAl1sZfQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:ba4a,2606:4700:3037::6815:3bf7

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.rs-systemer.dk)
p=none (monitor only)	v=DMARC1; p=none; adkim=r; aspf=r; rua=mailto:dmarc@rs-systemer.dk; fo=1

📬 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)

🔐 DNSSEC99ms

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	2409756800
Primary NS (MNAME)	kenneth.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

46ms

A

40ms

MX

58ms

AAAA

46ms

TXT

182ms

CAA

52ms

HTTPS

45ms

TLSA

59ms

SOA

0ms

MTA-STS

73ms

DNSSEC

99ms

SRV

68ms

Total

680ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:58:41	680ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-18 03:30:41	885ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-14 08:18:00	9722ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-07 04:38:45	1278ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-28 15:13:34	1689ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 11:35:57	5049ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 08:32:55	904ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 10:55:13	874ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 12:16:00	2726ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 04:10:11	817ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 04:03:39	3491ms	2 NS 2 A 0 MX	🔓 Insecure	View