optimal-online.dk

📜 Historical scan 2026-06-18 05:57:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optimal-online.dk is a .dk domain served by 4 nameservers (a.ns14.net, b.ns14.net, c.ns14.net and 1 more). It was registered on 6 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 62.96.183.41 is hosted by COLT Technology Services Group Limited (AS8220) in Germany. Mail is handled by mail.optimal-online.de. 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#

4 records 78ms

Nameserver	IP addresses	PTR	ASN / ISP
a.ns14.net	2001:8d8:fe:53:217:160:80:160 217.160.80.160	ns-ix1.ui-dns.de ns-ix1.ui-dns.de	AS8560 IONOS SE AS8560 IONOS SE
b.ns14.net	2001:8d8:fe:53:217:160:81:160 217.160.81.160	ns-ix1.ui-dns.biz ns-ix1.ui-dns.biz	AS8560 IONOS SE AS8560 IONOS SE
c.ns14.net	185.132.35.160 2607:f1c0:fe:53:185:132:35:160	ns-ix1.ui-dns.org ns-ix1.ui-dns.org	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
d.ns14.net	185.132.34.160 2607:f1c0:fe:53:185:132:34:160	ns-ix1.ui-dns.com ns-ix1.ui-dns.com	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited

🌍 A Records#

1 records 78ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
62.96.183.41	—	—	AS8220	COLT Technology Services Group Limited	62.96.128.0/18	🇩🇪 Germany	Berlin

📧 MX Records#

1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.optimal-online.de	62.96.183.37	mail.optimal-media.com	AS8220 COLT Technology Services Group Limited

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-09 18:55:18

www	62.96.183.41 (AS8220) (address records, no CNAME)
www vs bare domain	Same network optimal-online.dk: 62.96.183.41 (AS8220) www.optimal-online.dk: 62.96.183.41 (AS8220)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

130ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

79ms

Field	Value
Serial	2014011200
Primary NS (MNAME)	a.ns14.net
Responsible (RNAME)	candreas@optimal-online.de
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-13 03:47:51

Field	Value
Registrar	InterNetX GmbH
Registered	2009-01-06
Expires	2027-01-31 (101d)

🔗 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#

78ms

74ms

AAAA

61ms

TXT

253ms

CAA

133ms

HTTPS

59ms

TLSA

166ms

SOA

79ms

MTA-STS

107ms

DNSSEC

130ms

SRV

168ms

Total

838ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 02:32:26	770ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 23:33:34	886ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 02:57:52	1716ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-18 05:57:48 shown	838ms	4 NS 1 A 1 MX	🔓 Insecure