duopro.dk DNS records

🖥️ Nameservers2 records 63ms

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.
rosalie.ns.cloudflare.com	108.162.194.57 162.159.38.57 172.64.34.57 2606:4700:50::a29f:2639 2803:f800:50::6ca2:c239 2a06:98c1:50::ac40:2239	rosalie.ns.cloudflare.com rosalie.ns.cloudflare.com rosalie.ns.cloudflare.com rosalie.ns.cloudflare.com rosalie.ns.cloudflare.com rosalie.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.37.41	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.203.187	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 61ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:2529	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:cbbb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.37.41,172.67.203.187 ech=AEX+DQBBTwAgACAOmWlPq4z5qUDpGw2hdQCkGJB2jlJGHIBUXoIPWZLTWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:2529,2606:4700:3036::ac43:cbbb

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.duopro.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.net;

📬 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	2410626170
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

63ms

A

51ms

MX

59ms

AAAA

61ms

TXT

207ms

CAA

58ms

HTTPS

48ms

TLSA

54ms

SOA

0ms

MTA-STS

71ms

DNSSEC

99ms

SRV

74ms

Total

539ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 20:35:40	539ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 13:31:58	557ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-28 20:02:38	1537ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-13 12:04:46	9704ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-01 23:26:19	2398ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 05:13:30	1262ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 05:11:25	8548ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 05:08:11	356ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 05:00:32	627ms	2 NS 2 A 0 MX	🔓 Insecure	View