Free domain security check

What does your domain reveal?

Check 8 public DNS signals for email protection and domain security. Get the evidence, understand the gaps, and see what to review first.

Request a human review. The domain check is optional. Go straight to your confidential request
No email address needed to see results

We check public DNS evidence only. We never log in, exploit systems, or access private company data.

8 public DNS checks No account required Human review is optional

Preview the explanation and evidence. No domain entry required.

What we inspect

Public records. No intrusive scan.
SPF
Published sender policy
DMARC
Policy for impersonated email
MX
Incoming email routes
DKIM
Keys at common selectors
MTA-STS
DNS policy marker only
TLS reporting
Mail transport reporting record
CAA
Certificate issuance rules
DNSSEC
Delegation or validation evidence

A point-in-time DNS snapshot, not a security audit. It does not test live email delivery, website certificates, devices, backups, or internal systems. DKIM may use other selectors; an inconclusive lookup needs verification.

Your business beyond DNS

Optional self-reported check. Your answers stay in this tab and are not a security audit.

Optional expert review

Discuss the next step for your business.

Tell North Star what you need help with. You can ask about a service or bring the optional DNS snapshot for context; the check is not required for an enquiry.

  • Clarify your requirements and the people or systems affected
  • Agree scope and next steps before approving work
  • No obligation to purchase a service
  • Remote support across Canada, with dispatch from Prince George and Grande Prairie

Request a confidential review

Tell us where to send the follow-up and what you need help with. No passwords, login details, or system access are needed for this initial review.

You can change this selection. This is an inquiry, not a purchase or agreement to a price.

We will only use these details to respond to this request. No marketing emails without consent. See our Privacy Policy.

What happens next

A clear follow-up process, with the service, scope and next steps confirmed before new work begins.

1. We clarify your request

We review the service selected, the business context and the details you choose to share. If you ran a public website check, its observations are starting points to verify.

2. We agree the next step

We clarify priorities, affected systems or website, access and outstanding questions. Any proposed new work, inclusions and charges are confirmed in a written scope before work begins.

3. You decide what follows

Use the discussion to plan, ask for a proposal or handle the next step internally. Sending a request does not start a service agreement or authorise paid work.

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Review the scope before you contact us.

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