opensign.dk

📜 Historical scan 2026-08-27 15:21:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opensign.dk is a .dk domain served by 2 nameservers (ns1.alco.dk, ns2.alco.dk). It was registered on 18 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.27.217.89 is hosted by Hetzner Online GmbH (AS24940) in Finland. Mail is handled by mail.opensign.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.alco.dk	46.225.229.1	ns1.alco.dk	AS24940 Hetzner Online GmbH
ns2.alco.dk	89.167.94.156	ns2.alco.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.27.217.89	3600s	static.89.217.27.37.clients.your-server.de	AS24940	Hetzner Online GmbH	37.27.0.0/16	🇫🇮 Finland	Helsinki

📧 MX Records#

1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mail.opensign.dk	65.21.55.96	hosting-3.alco.company	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 276ms

TXT Record
v=spf1 mx a -all

✉️ SPF#

Policy	Record (opensign.dk)
-all (hard fail)	v=spf1 mx a -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 02:13:22

www	NXDOMAIN
www vs bare domain	www does not resolve opensign.dk: 37.27.217.89 (AS24940) www.opensign.dk: no address (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

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	2025121901
Primary NS (MNAME)	ns1.alco.dk
Responsible (RNAME)	hostmaster@opensign.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-20 20:39:33

Field	Value
Registrar	CURANET A/S
Registered	2025-11-18
Expires	2026-11-17 (27d)

🔗 Same registrant#

13 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
biblioteketthy.dk	Punktum dk A/S (direct)
bilstumper.dk	Punktum dk A/S (direct)
by2mc.dk	CURANET A/S
kontingent.dk	CURANET A/S
lodseddel.dk	Punktum dk A/S (direct)
nordthyhealth.dk	Punktum dk A/S (direct)
oxen.dk	Punktum dk A/S (direct)
pbox.dk	Punktum dk A/S (direct)
piccoline.dk	Punktum dk A/S (direct)
priime.dk	Punktum dk A/S (direct)
printserver.dk	Punktum dk A/S (direct)
revikon.dk	Punktum dk A/S (direct)
thegreenoak.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

51ms

55ms

AAAA

47ms

TXT

276ms

CAA

66ms

HTTPS

74ms

TLSA

121ms

SOA

0ms

MTA-STS

94ms

DNSSEC

88ms

SRV

90ms

Total

791ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 18:06:17	626ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-27 18:04:02	9476ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 15:21:28 shown	791ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 17:58:33	954ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:10:59	1626ms	2 NS 1 A 1 MX	🔓 Insecure