optics.dk

📜 Historical scan 2026-09-30 10:38:10  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optics.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 17 April 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 142.132.203.237 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. The zone is not DNSSEC-signed, publishes a 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#

4 records   57ms
NameserverIP addressesPTRASN / ISP
ns1.nordicway.dk 2a01:4f8:1c1a:a1e7::1
91.98.140.195		 —
static.195.140.98.91.clients.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns2.nordicway.dk 2a01:4f8:c012:4db6::1
49.13.80.249		 —
static.249.80.13.49.clients.your-server.de		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns3.nordicway.dk 2a01:4f8:c2c:d3c0::1
78.47.45.64		 ns3.nordicway.dk
ns3.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns4.nordicway.dk 2a01:4f8:c010:24a2::1
78.47.56.84		 ns4.nordicway.dk
ns4.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

🌍 A Records#

1 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
142.132.203.237 3600s cp08.nordicway.dk AS24940 Hetzner Online GmbH 142.132.128.0/17 🇩🇪 Germany Falkenstein

📧 MX Records#

2 records   40ms
PriorityTTLMail ServerIP addressesPTRASN
0 1700s eu-esec-01.heimdalsecurity.com 20.50.183.144
20.50.183.146		 eu-esec-01.heimdalsecurity.com
eu-esec-01.heimdalsecurity.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
1 1700s eu-esec-02.heimdalsecurity.com 20.50.183.144
20.50.183.146		 eu-esec-01.heimdalsecurity.com
eu-esec-01.heimdalsecurity.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover77.42.127.36
🔶 Autoconfig77.42.127.36

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   280ms
TXT Record
v=spf1 ip4:77.215.239.130 ip4:213.237.49.65 include:spf-esec.heimdalsecurity.com a mx -all

✉️ SPF#

PolicyRecord (optics.dk)
-all (hard fail) v=spf1 ip4:77.215.239.130 ip4:213.237.49.65 include:spf-esec.heimdalsecurity.com a mx -all

📨 DMARC#

PolicyRecord (_dmarc.optics.dk)
p=reject v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:8lqtz9ev@ag.eu.dmarcadvisor.com,mailto:cbj@optics.dk;ruf=mailto:cbj@optics.dk,mailto:8lqtz9ev@fr.eu.dmarcadvisor.com

📬 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 2026-10-20 17:18:55
www CNAMEoptics.dk (all on optics.dk)
www vs bare domainSame network
optics.dk: 142.132.203.237 (AS24940)
www.optics.dk: 142.132.203.237 (AS24940)
WildcardNo

✍️ DKIM keys#

2 found
SelectorCNAMEKey
default — RSA · ~2048 bit
dkim — 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

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.optics.dk SZAec1Q1oUFAT8OClIjMmKYnilScmWJg9Jlo99dm2xY

🔗 TLSA / DANE#

2 records   143ms
Service / OwnerTypeCert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com DANE-EE · SPKI · SHA-256 2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com DANE-EE · SPKI · SHA-256 2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC#

126ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

46ms
FieldValue
Serial2026092900
Primary NS (MNAME)ns1.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-16 08:25:40
FieldValue
Registrarnordicway ApS
Registered2013-04-17
Expires2028-04-30 (552d)

🔗 Same registrant#

1 domain

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
ferropermoptics.dknordicway ApS
📋 WHOIS#

⏱️ Lookup Timing#

NS
57ms
A
50ms
MX
40ms
AAAA
44ms
TXT
280ms
CAA
53ms
HTTPS
52ms
TLSA
143ms
SOA
46ms
MTA-STS
86ms
DNSSEC
126ms
SRV
86ms
Total
982ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-20 17:18:55 671ms 4 NS 1 A 2 MX 🔓 Insecure
2026-10-16 07:56:45 1446ms 4 NS 1 A 2 MX 🔓 Insecure
2026-10-06 12:24:50 3509ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-30 10:38:10 shown 982ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-25 10:03:09 836ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-17 14:20:28 1142ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-13 15:08:38 942ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-02 15:51:01 918ms 4 NS 1 A 2 MX 🔓 Insecure
2026-09-01 18:25:30 950ms 4 NS 1 A 2 MX 🔓 Insecure
2026-08-28 17:15:32 763ms 4 NS 1 A 2 MX 🔓 Insecure
2026-08-25 10:15:29 9700ms 4 NS 1 A 2 MX 🔓 Insecure
2026-07-16 11:46:59 1214ms 4 NS 1 A 2 MX 🔓 Insecure
2026-06-29 23:25:44 950ms 4 NS 1 A 2 MX 🔓 Insecure
2026-06-29 01:06:35 994ms 4 NS 1 A 2 MX 🔓 Insecure
2026-06-25 03:12:01 1663ms 4 NS 1 A 0 MX 🔓 Insecure
2026-06-17 13:14:44 2346ms 4 NS 1 A 2 MX 🔓 Insecure
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