sigsys.dk

📜 Historical scan 2026-06-17 13:19:39  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sigsys.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was registered on 27 February 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.23.81.157 is hosted by High5! B.V. (AS60131) in The Netherlands. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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#

3 records   117ms
NameserverIP addressesPTRASN / ISP
helium.ns.hetzner.de 193.47.99.5
2001:67c:192c::add:5		 helium.ns.hetzner.de
helium.ns.hetzner.de		 AS12337 noris network AG
AS12337 noris network AG
hydrogen.ns.hetzner.com 213.133.100.98
2a01:4f8:0:1::add:1098		 hydrogen.ns.hetzner.com
hydrogen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com 2a01:4f8:0:1::add:2992
88.198.229.192		 oxygen.ns.hetzner.com
oxygen.ns.hetzner.com		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

🌍 A Records#

1 records   115ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.23.81.157 — 46-23-81-157.high5.nu AS60131 High5! B.V. 46.23.80.0/20 🇳🇱 The Netherlands —

📧 MX Records#

2 records   105ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
20 — mailsec.protonmail.ch 176.119.200.129
185.205.70.129
185.70.42.129		 mailsec.protonmail.ch
mailsec.protonmail.ch
mailsec.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG

🔷 AAAA Records (IPv6)#

1 records   111ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a03:6000:1813:1337::157 — — AS60131 High5! B.V. 2a03:6000:0:0:0:0:0:0/29 🇳🇱 The Netherlands —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   332ms
TXT Record
protonmail-verification=f6bea963f44d452af9f56190f62747374b354c56
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

PolicyRecord (sigsys.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

PolicyRecord (_dmarc.sigsys.dk)
p=quarantine v=DMARC1; p=quarantine

📬 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 2026-10-08 18:48:31
wwwNXDOMAIN
www vs bare domainwww does not resolve
sigsys.dk: 46.23.81.157 2a03:6000:1813:1337::157 (AS60131)
www.sigsys.dk: no address
(all like this)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   155ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC#

268ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

82ms
FieldValue
Serial2026021200
Primary NS (MNAME)hydrogen.ns.hetzner.com
Responsible (RNAME)dns@hetzner.com
Refresh86400s
Retry10800s
Expire3600000s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-15 20:07:06
FieldValue
RegistrarSimply.com A/S
Registered2005-02-27
Expires2027-02-28 (134d)

🔗 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
117ms
A
115ms
MX
105ms
AAAA
111ms
TXT
332ms
CAA
82ms
HTTPS
105ms
TLSA
155ms
SOA
82ms
MTA-STS
118ms
DNSSEC
268ms
SRV
0ms
Total
2445ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-24 16:14:50 2685ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-03 14:24:54 10329ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-22 04:40:22 9673ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-03 19:03:31 1471ms 3 NS 1 A 2 MX 🔓 Insecure
2026-06-17 13:19:39 shown 2445ms 3 NS 1 A 2 MX 🔓 Insecure
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