optimumgroupgreenliner.dk

📜 Historical scan 2026-06-29 20:48:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optimumgroupgreenliner.dk is a .dk domain served by 3 nameservers (nsauth1.introweb.nl, nsauth2.introweb.nl, nsauth3.introweb.net). It was registered on 22 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 62.165.75.168 is hosted by Previder B.V. (AS20847) in The Netherlands. Mail is handled by mx.previder.nl. The zone is not DNSSEC-signed, has no 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 71ms

Nameserver	IP addresses	PTR	ASN / ISP
nsauth1.introweb.nl	2001:1690:1:a::a 80.65.96.48	nsauth1.introweb.nl nsauth1.introweb.nl	AS20847 Previder B.V. AS20847 Previder B.V.
nsauth2.introweb.nl	2a0d:8600:1::5a 86.105.160.91	nsauth2.introweb.nl nsauth2.introweb.nl	AS205185 Eurofiber Cloud Infra B.V. AS205185 Eurofiber Cloud Infra B.V.
nsauth3.introweb.net	2001:1690:1:c::a 62.165.127.221	nsauth3.introweb.net nsauth3.introweb.net	AS20847 Previder B.V. AS20847 Previder B.V.

🌍 A Records#

1 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
62.165.75.168	3600s	ip-62-165-75-168.previder.nl	AS20847	Previder B.V.	62.165.64.0/18	🇳🇱 The Netherlands	Borne

📧 MX Records#

1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.previder.nl	2001:1690:65::100 62.165.65.100	mx.previder.nl mx.previder.nl	AS20847 Previder B.V. AS20847 Previder B.V.

🔷 AAAA Records (IPv6)#

1 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1690:2:1956::4400	3600s	—	AS20847	Previder B.V.	2001:1690:0:0:0:0:0:0/32	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 263ms

TXT Record
v=DMARC1;p=reject;
v=spf1 a mx ~all

✉️ SPF#

Policy	Record (optimumgroupgreenliner.dk)
~all (soft fail)	v=spf1 a mx ~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 2026-10-09 02:51:35

www	62.165.75.168 2001:1690:2:1956::4400 (AS20847) (address records, no CNAME)
www vs bare domain	Same network optimumgroupgreenliner.dk: 62.165.75.168 2001:1690:2:1956::4400 (AS20847) www.optimumgroupgreenliner.dk: 62.165.75.168 2001:1690:2:1956::4400 (AS20847)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

1 records 206ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.previder.nl	DANE-EE · SPKI · SHA-256	7849224D1C24FD6B04CB0E1D036A0434…

🔐 DNSSEC#

86ms

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

🏷️ SOA#

75ms

Field	Value
Serial	2024102102
Primary NS (MNAME)	nsauth1.introweb.nl
Responsible (RNAME)	postmaster@introweb.nl
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-13 14:52:21

Field	Value
Registrar	Realtime Register B.V.
Registered	2024-10-22
Expires	2026-10-21 (expired)

🔗 Same registrant#

11 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
optimumgreen.dk	Punktum dk A/S (direct)
optimumgroup.dk	Punktum dk A/S (direct)
optimumgroupcareers.dk	Punktum dk A/S (direct)
optimumsupplies.dk	Punktum dk A/S (direct)
pouch4all.dk	Realtime Register B.V.
pouch4you.dk	Realtime Register B.V.
pouches4all.dk	Realtime Register B.V.
pouchesfourall.dk	Realtime Register B.V.
pouchforyou.dk	Realtime Register B.V.
pouchfourall.dk	Realtime Register B.V.
pouchfouryou.dk	Realtime Register B.V.

📋 WHOIS#

⏱️ Lookup Timing#

71ms

55ms

AAAA

46ms

TXT

263ms

CAA

45ms

HTTPS

49ms

TLSA

206ms

SOA

75ms

MTA-STS

67ms

DNSSEC

86ms

SRV

93ms

Total

941ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-25 23:41:13	2873ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-29 20:48:38 shown	941ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-22 11:01:05	3240ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-21 06:27:37	963ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 03:58:18	734ms	3 NS 1 A 1 MX	🔓 Insecure