TenantWard
Sign inStart free

Free domain security check

Type a domain to see how well it's protected against spoofing, interception and hijacking, with a plain-English explanation of every result.

Results in about ten seconds. No sign-up; we only read public records.

Want the full picture? Connect Microsoft 365 or Google Workspace, read-only, with a 7-day trial.

northwind-dental.com

Example report

58/100

Some real gaps: 3 to fix and 1 to review.

Email45
Domain60
Website80
  • CriticalNothing stops criminals sending email as this domain
  • HighMicrosoft 365 isn't signing your email (DKIM)
  • HighYour domain isn't locked against transfers
  • MediumYour website's certificate expires in 12 days

6 checks passing

What it checks

  • Email: who hosts your mail, SPF, DKIM, DMARC and MTA-STS
  • Website: certificate validity and expiry, HTTPS redirect and HSTS
  • Domain: registration expiry, transfer lock, DNSSEC and who hosts your DNS
  • Lookalikes: registered domains that could be used to impersonate you

How to read your score

The score runs from 0 to 100, weighted by how much each issue matters. Critical issues, like a domain anyone can send email as, cost the most. Each finding explains what's wrong, why it matters and how to fix it.

Keep it checked

Create a free account to recheck one domain every week and get an email if something changes. Paid plans recheck every domain and add Microsoft 365 or Google Workspace.

Questions

Is the domain security check really free?
Yes. There's no signup for a one-off check, and one domain is monitored weekly for free with an account.
Does the check change anything on my domain?
No. It only reads public DNS, certificate and registration data, the same information anyone on the internet can see.

See where your company stands

Check a domain for free, then connect Microsoft 365 or Google Workspace for the full checkup. Every new workspace gets a 7-day trial, no card needed.

Start freeSee pricing