rec.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
burt.ns.cloudflare.com	108.162.193.79 172.64.33.79 173.245.59.79 2606:4700:58::adf5:3b4f 2803:f800:50::6ca2:c14f 2a06:98c1:50::ac40:214f	burt.ns.cloudflare.com burt.ns.cloudflare.com burt.ns.cloudflare.com burt.ns.cloudflare.com burt.ns.cloudflare.com burt.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
zoe.ns.cloudflare.com	108.162.192.149 172.64.32.149 173.245.58.149 2606:4700:50::adf5:3a95 2803:f800:50::6ca2:c095 2a06:98c1:50::ac40:2095	zoe.ns.cloudflare.com zoe.ns.cloudflare.com zoe.ns.cloudflare.com zoe.ns.cloudflare.com zoe.ns.cloudflare.com zoe.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.78.156	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.223.126	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:df7e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:4e9c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 47ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.78.156,172.67.223.126 ech=AEX+DQBB2gAgACAS/uUxzuEu6VLajvHxpyGu+hOJvX2nFXX4jzq+kPolFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:df7e,2606:4700:3037::6815:4e9c

📝 TXT Records1 records 199ms

TXT Record
v=spf1 a +mx include:spf.curanet.dk include:spf.securesmtp.dk ip4:104.25.90.38 ip4:94.231.100.135 ip4:185.221.37.84 ip4:70.34.203.174 -all

✉️ SPF

Policy	Record (rec.dk)
-all (hard fail)	v=spf1 a +mx include:spf.curanet.dk include:spf.securesmtp.dk ip4:104.25.90.38 ip4:94.231.100.135 ip4:185.221.37.84 ip4:70.34.203.174 -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)

🔐 DNSSEC89ms

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	2412859000
Primary NS (MNAME)	burt.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

40ms

A

36ms

MX

46ms

AAAA

44ms

TXT

199ms

CAA

42ms

HTTPS

47ms

TLSA

98ms

SOA

0ms

MTA-STS

72ms

DNSSEC

89ms

SRV

68ms

Total

1375ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 10:51:20	1375ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-27 03:10:31	782ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-23 03:57:23	10553ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-21 03:46:46	5646ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-13 16:11:55	2432ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-09 05:38:52	1633ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-21 10:58:16	883ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-21 09:42:47	1023ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 06:34:21	819ms	2 NS 2 A 2 MX	🔓 Insecure	View