cu.dk

📜 Historical scan 2026-06-16 23:10:44  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cu.dk is a .dk domain served by 4 nameservers (ns1.nordicway.dk, ns2.nordicway.dk, ns3.nordicway.dk and 1 more). It was registered on 26 July 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 176.9.90.24 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.cu.dk. 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#

4 records   79ms
NameserverIP addressesPTRASN / ISP
ns1.nordicway.dk — — —
ns2.nordicway.dk — — —
ns3.nordicway.dk — — —
ns4.nordicway.dk — — —

🌍 A Records#

1 records   99ms
IPTTLPTRASNISP / OrgCIDRCountryCity
176.9.90.24 — cp10.nordicway.dk AS24940 Hetzner Online GmbH 176.9.0.0/16 🇩🇪 Germany Falkenstein

📧 MX Records#

1 records   86ms
PriorityTTLMail ServerIP addressesPTRASN
0 — mail.cu.dk 176.9.90.24 cp10.nordicway.dk AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

1 records   94ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:4f8:151:30f0::2 — — AS24940 Hetzner Online GmbH 2a01:4f8:0:0:0:0:0:0/31 🇩🇪 Germany Falkenstein

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   268ms
TXT Record
v=spf1 +a +mx +ip4:176.9.90.24 include:relay.mailchannels.net ~all

✉️ SPF#

PolicyRecord (cu.dk)
~all (soft fail) v=spf1 +a +mx +ip4:176.9.90.24 include:relay.mailchannels.net ~all

📨 DMARC#

PolicyRecord (_dmarc.cu.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 2026-10-17 05:04:13
www CNAMEcu.dk (all on cu.dk)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — 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: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

164ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

108ms
FieldValue
Serial2026061601
Primary NS (MNAME)ns1.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-17 05:38:12
FieldValue
Registrarnordicway ApS
Registered2016-07-26
Expires2027-07-31 (283d)

🔗 Same registrant#

7 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).

DomainRegistrar
16bit.dknordicway ApS
alm.dknordicway ApS
alt-ctrl-del.dknordicway ApS
cmr.dknordicway ApS
ecb.dkFIONIA IT ApS
stenfeldt.dknordicway ApS
zzz.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
79ms
A
99ms
MX
86ms
AAAA
94ms
TXT
268ms
CAA
81ms
HTTPS
78ms
TLSA
74ms
SOA
108ms
MTA-STS
47ms
DNSSEC
164ms
SRV
0ms
Total
551ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-17 05:04:13 1679ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-28 07:07:16 883ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-18 13:13:32 2629ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-21 22:25:31 735ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-19 23:55:11 899ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-16 23:10:44 shown 551ms 4 NS 1 A 1 MX 🔓 Insecure
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