Domain & DNS Security Check – Hijack, Expiry and Subdomain Takeover Risks

Losing your domain is the one breach you cannot restore from backup.

The Domain & DNS Security Check looks at the records that protect the domain itself rather than the website on it: whether the registrar will refuse a transfer request, how soon the registration expires, whether DNSSEC and CAA are in place, and — the finding that matters most — whether any subdomain still points at a cloud service you gave up, which is how a stranger takes over a corner of your name without touching your systems. Up to three domains in one run.

What it checks

• Registrar transfer lock and how soon the domain expires — both precursors to a domain hijack
• DNSSEC, CAA and nameserver health: the records that protect the domain itself
• Subdomain takeover: a subdomain pointing at a cloud service that no longer belongs to you, confirmed by two independent signals before it is reported
• Mail-security records (SPF, DKIM, DMARC, MTA-STS) that stop strangers sending as you
• Whether your entire DNS zone can be copied by anyone who asks (zone transfer)
• Passive throughout: public registration data and DNS only, nothing sent to your servers

What you get

• A written PDF report emailed back to you, typically within one business day.
• Every finding rated Critical / High / Medium / Low, with the record and the evidence named.
• An executive summary you can forward to whoever manages your domain.
• Step-by-step remediation for each record, written for the registrar and DNS control panels a small business actually uses.
• A "what was checked" appendix that states the limits of the scan honestly.
• Reporting built to CompTIA Security+ and PenTest+ practice standards.

Who it's for

Any domain owner. Small businesses lose domains to expiry and subdomain takeover far more often than they lose them to hackers, and nothing else in a typical security stack checks for either.

Requirements

• Windows 10 or Windows 11
• No administrator rights needed
• An internet connection
• Up to three domain names
• About 3 minutes
• You must own or be authorised to check the domains you enter

What this is not

QuickScan is detection and advisory only. It reads public registration and DNS data; it never changes a record, never contacts your registrar, and never exploits a dangling subdomain to prove the point. If a registry does not publish lock or expiry data, the report says the check could not run rather than reporting it as safe. It is not a certification, an audit or an attestation.

One-time purchase. No subscription, no auto-renewal. Your report is prepared with AI-assisted analysis under ThreatVector's security review protocols and checked against our false-positive triage rules before it is sent. Reports are produced by ThreatVector LLC. ThreatVector and its scan library are developed, sold and distributed by ThreatVector LLC.