opticron.dk

📜 Historical scan 2026-06-24 18:25:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opticron.dk is a .dk domain served by 4 nameservers (ns1.bb-online.net, ns2.bb-online.org, ns3.bb-online.uk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.77.56.63 is hosted by The Constant Company, LLC (AS20473) in United Kingdom. Mail is handled by mail4.bb-online.co.uk, mail1.bb-online.co.uk and 2 more. 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 389ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bb-online.net	185.206.123.1	ns1.bb-online.net	AS212217 BB-Online UK Ltd
ns2.bb-online.org	81.30.104.2	ns2.bb-online.org	AS212217 BB-Online UK Ltd
ns3.bb-online.uk	46.253.129.1	brain.bb-online.co.uk	AS212217 BB-Online UK Ltd
ns4.bb-online.biz	91.238.194.4	ns4.bb-online.biz	AS212217 BB-Online UK Ltd

🌍 A Records#

1 records 403ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
45.77.56.63	172800s	45.77.56.63.vultrusercontent.com	AS20473	The Constant Company, LLC	45.76.0.0/15	🇬🇧 United Kingdom	Canary Wharf

📧 MX Records#

4 records 361ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	172800s	mail4.bb-online.co.uk	108.61.173.17	mail4.bb-online.co.uk	AS20473 The Constant Company, LLC
20	172800s	mail1.bb-online.co.uk	136.244.76.63	mail1.bb-online.co.uk	AS20473 The Constant Company, LLC
30	172800s	mail2.bb-online.co.uk	45.77.226.139	mail2.bb-online.co.uk	AS20473 The Constant Company, LLC
40	172800s	mail3.bb-online.co.uk	45.77.226.139	mail2.bb-online.co.uk	AS20473 The Constant Company, LLC

🔷 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 2026-10-13 21:30:59

www CNAME	opticron.dk (all on opticron.dk) → 45.77.56.63 (AS20473)
www vs bare domain	Same network opticron.dk: 45.77.56.63 (AS20473) www.opticron.dk: 45.77.56.63 (AS20473)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

495ms

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

🏷️ SOA#

344ms

Field	Value
Serial	2023011902
Primary NS (MNAME)	ns1.bb-online.net
Responsible (RNAME)	postmaster@opticron.dk
Refresh	10800s
Retry	3600s
Expire	3600000s
Minimum (neg-cache TTL)	10800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

389ms

403ms

361ms

AAAA

422ms

TXT

6498ms

CAA

407ms

HTTPS

380ms

TLSA

2146ms

SOA

344ms

MTA-STS

504ms

DNSSEC

495ms

SRV

4192ms

Total

9907ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:54:38	5383ms	4 NS 1 A 4 MX	🔓 Insecure
2026-06-24 18:25:57 shown	9907ms	4 NS 1 A 4 MX	🔓 Insecure
2026-06-17 13:02:13	2727ms	4 NS 1 A 4 MX	🔓 Insecure