duo-design.dk

📜 Historical scan 2026-07-02 00:39:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duo-design.dk is a .dk domain served by 2 nameservers (nia.ns.cloudflare.com, quinton.ns.cloudflare.com). It was registered on 6 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.64.226 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
nia.ns.cloudflare.com	108.162.192.210 172.64.32.210 173.245.58.210 2606:4700:50::adf5:3ad2 2803:f800:50::6ca2:c0d2 2a06:98c1:50::ac40:20d2	nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
quinton.ns.cloudflare.com	108.162.195.249 162.159.44.249 172.64.35.249 2606:4700:58::a29f:2cf9 2803:f800:50::6ca2:c3f9 2a06:98c1:50::ac40:23f9	quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.64.226	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.156.42	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

7 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b 64.233.165.27	lf-in-f27.1e100.net lf-in-x1b.1e100.net lg-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx5.googlemail.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:9c2a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:40e2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.64.226,172.67.156.42 ech=AEX+DQBBbQAgACDRh8EBBYsg5gKR/MjDbn7NihoT9MYyzy/BWffmjeQMZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:9c2a,2606:4700:3036::6815:40e2

📝 TXT Records#

2 records 183ms

TXT Record
ca3-3ddc57c8d0c8474097c6d7b35658b1fb
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (duo-design.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.duo-design.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:info@duo-design.dk

📬 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 2026-10-10 08:28:35

www	NXDOMAIN
www vs bare domain	www does not resolve duo-design.dk: 104.21.64.226 172.67.156.42 2606:4700:3034::ac43:9c2a 2606:4700:3036::6815:40e2 (AS13335) www.duo-design.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

117ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2406149028
Primary NS (MNAME)	nia.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 12:24:25

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-02-06
Expires	2027-02-28 (132d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
toettrup.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

46ms

36ms

AAAA

34ms

TXT

183ms

CAA

35ms

HTTPS

37ms

TLSA

134ms

SOA

36ms

MTA-STS

67ms

DNSSEC

117ms

SRV

61ms

Total

1132ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 04:59:18	1006ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-27 03:57:45	959ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-25 03:13:37	1125ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-15 07:22:59	1231ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-09 20:56:20	1208ms	2 NS 2 A 7 MX	🔓 Insecure
2026-09-05 08:36:13	840ms	2 NS 2 A 7 MX	🔓 Insecure
2026-08-04 00:01:29	10914ms	2 NS 2 A 7 MX	🔓 Insecure
2026-07-02 00:39:46 shown	1132ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-17 05:15:30	28936ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-17 05:10:44	2752ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-17 05:00:58	850ms	2 NS 2 A 7 MX	🔓 Insecure
2026-06-17 05:00:21	782ms	2 NS 2 A 7 MX	🔓 Insecure