duopro.dk

📜 Historical scan 2026-08-31 20:35:40 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duopro.dk is a .dk domain served by 2 nameservers (burt.ns.cloudflare.com, rosalie.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.37.41 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 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 Records#

2 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 Records#

1 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 10:40:36

www	104.21.37.41 172.67.203.187 2606:4700:3033::6815:2529 2606:4700:3036::ac43:cbbb (AS13335) (address records, no CNAME)
www vs bare domain	Same network duopro.dk: 104.21.37.41 172.67.203.187 2606:4700:3033::6815:2529 2606:4700:3036::ac43:cbbb (AS13335) www.duopro.dk: 104.21.37.41 172.67.203.187 2606:4700:3033::6815:2529 2606:4700:3036::ac43:cbbb (AS13335)
Wildcard	No

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

99ms

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

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

63ms

51ms

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
2026-10-03 15:13:43	387ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-26 05:50:38	573ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-25 05:44:27	603ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-19 02:27:33	9437ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-11 10:36:53	1911ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-31 20:35:40 shown	539ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 13:31:58	557ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-28 20:02:38	1537ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-13 12:04:46	9704ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-01 23:26:19	2398ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 05:13:30	1262ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 05:11:25	8548ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 05:08:11	356ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 05:00:32	627ms	2 NS 2 A 0 MX	🔓 Insecure