optiheat.dk DNS records

🖥️ Nameservers2 records 24ms

Nameserver	IP addresses	PTR	ASN / ISP
kate.ns.cloudflare.com	108.162.192.124 172.64.32.124 173.245.58.124 2606:4700:50::adf5:3a7c 2803:f800:50::6ca2:c07c 2a06:98c1:50::ac40:207c	kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
keanu.ns.cloudflare.com	108.162.195.167 162.159.44.167 172.64.35.167 2606:4700:58::a29f:2ca7 2803:f800:50::6ca2:c3a7 2a06:98c1:50::ac40:23a7	keanu.ns.cloudflare.com keanu.ns.cloudflare.com keanu.ns.cloudflare.com keanu.ns.cloudflare.com keanu.ns.cloudflare.com keanu.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.16.247	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.217.84	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 24ms

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

🔷 AAAA Records (IPv6)2 records 22ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:10f7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:d954	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 23ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.16.247,172.67.217.84 ech=AEX+DQBBvwAgACC4epbPwsz4FZ//yHIyrHUTo3aPJVpcva8mZUTqXhCgZgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:10f7,2606:4700:3035::ac43:d954

📝 TXT Records1 records 130ms

TXT Record
brevo-code:3f71c5b7d24d94fba9bc3a51a43761d5

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.optiheat.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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)

🔐 DNSSEC98ms

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	2413403619
Primary NS (MNAME)	kate.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

24ms

A

45ms

MX

24ms

AAAA

22ms

TXT

130ms

CAA

23ms

HTTPS

23ms

TLSA

47ms

SOA

0ms

MTA-STS

51ms

DNSSEC

98ms

SRV

57ms

Total

915ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 16:08:09	915ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 02:11:19	928ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-06 23:23:46	2081ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 17:01:42	1543ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 14:19:58	3345ms	2 NS 2 A 0 MX	🔓 Insecure	View