duopro.dk

📜 Historical scan 2026-06-17 05:00:32  ·  ← 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 registered on 15 September 2025 (WHOIS) and 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   71ms
NameserverIP addressesPTRASN / ISP
burt.ns.cloudflare.com — — —
rosalie.ns.cloudflare.com — — —

🌍 A Records#

2 records   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.37.41 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.203.187 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   44ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:cbbb — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:2529 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   40ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.37.41,172.67.203.187 ech=AEX+DQBBTgAgACBkv//ZxP4Vaum9fERkUVoG+f/WeY8RgzuorCx9S5g9PgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:cbbb,2606:4700:3037::6815:2529

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_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
www104.21.37.41 172.67.203.187 2606:4700:3033::6815:2529 2606:4700:3036::ac43:cbbb (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

243ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

43ms
FieldValue
Serial2405530054
Primary NS (MNAME)burt.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 19:06:22
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2025-09-15
Expires2026-09-14 (expired)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
71ms
A
53ms
MX
66ms
AAAA
44ms
TXT
160ms
CAA
36ms
HTTPS
40ms
TLSA
71ms
SOA
43ms
MTA-STS
75ms
DNSSEC
243ms
SRV
0ms
Total
627ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 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 shown 627ms 2 NS 2 A 0 MX 🔓 Insecure
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