3u-75.dk

📜 Historical scan 2026-07-03 14:24:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3u-75.dk is a .dk domain served by 2 nameservers (ns1.azehosting.net, ns2.azehosting.net). It was registered on 18 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 168.119.144.139 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by 3u-75.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#

2 records 272ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.azehosting.net	2a01:4f8:13b:3146::1 94.130.138.185	— ns1.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns2.azehosting.net	2a01:4f8:c17:5f0a::2 88.99.15.5	ns2.azehosting.net ns2.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 272ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
168.119.144.139	3600s	cp02.azehosting.net	AS24940	Hetzner Online GmbH	168.119.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 334ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	3u-75.dk	168.119.144.139 2a01:4f8:2b02:59b::2	cp02.azehosting.net cp02.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

1 records 285ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:2b02:59b::2	3600s	cp02.azehosting.net	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 771ms

TXT Record
v=spf1 +a +mx +ip4:168.119.144.139 include:spf.azehosting.net ~all

✉️ SPF#

Policy	Record (3u-75.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:168.119.144.139 include:spf.azehosting.net ~all

📨 DMARC#

Policy	Record (_dmarc.3u-75.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-11 19:17:30

www CNAME	3u-75.dk (all on 3u-75.dk) → 168.119.144.139 2a01:4f8:2b02:59b::2 (AS24940)
www vs bare domain	Same network 3u-75.dk: 168.119.144.139 2a01:4f8:2b02:59b::2 (AS24940) www.3u-75.dk: 168.119.144.139 2a01:4f8:2b02:59b::2 (AS24940)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
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: 4/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.3u-75.dk	mLYGIXLvZdcMr_k6zXp3cq9bC8oqhiKMylj8mqetIiE

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2326ms

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	2026070101
Primary NS (MNAME)	ns1.azehosting.net
Responsible (RNAME)	server-admin@azehosting.net
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-11 19:44:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-09-18
Expires	2027-09-17 (333d)

🔗 Same registrant#

8 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).

Domain	Registrar
22-12.dk	Punktum dk A/S (direct)
a-m-kunst.dk	Punktum dk A/S (direct)
acvirum.dk	Punktum dk A/S (direct)
f1-sjov.dk	Punktum dk A/S (direct)
me2u.dk	Punktum dk A/S (direct)
soederlund.dk	Punktum dk A/S (direct)
thungnoi.dk	Punktum dk A/S (direct)
tommic.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

272ms

334ms

AAAA

285ms

TXT

771ms

CAA

287ms

HTTPS

320ms

TLSA

331ms

SOA

0ms

MTA-STS

357ms

DNSSEC

2326ms

SRV

353ms

Total

6603ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 19:17:30	762ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 13:50:24	1530ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 12:40:26	2406ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-11 15:46:12	1798ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-03 14:24:18 shown	6603ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-28 10:18:44	861ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 12:57:53	1374ms	2 NS 1 A 1 MX	🔓 Insecure