optimumgroupgreenliner.dk

📜 Historical scan 2026-06-18 03:58:18 · ← 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 56ms

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	—	ip-62-165-75-168.previder.nl	AS20847	Previder B.V.	62.165.64.0/18	🇳🇱 The Netherlands	Borne

📧 MX Records#

1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	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 57ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1690:2:1956::4400	—	—	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 217ms

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 100ms

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

🔐 DNSSEC#

212ms

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

🏷️ SOA#

150ms

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#

56ms

55ms

118ms

AAAA

57ms

TXT

217ms

CAA

101ms

HTTPS

94ms

TLSA

100ms

SOA

150ms

MTA-STS

74ms

DNSSEC

212ms

SRV

178ms

Total

734ms

🕐 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	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 shown	734ms	3 NS 1 A 1 MX	🔓 Insecure