Tools

Email security check.

Enter your email domain to see whether criminals could send email pretending to be you, and whether your email is protected in transit. The check is run by the NCSC's free Email Security Check, and your results open in a new tab. The domain goes straight to the NCSC – we don't see or store it.

Results come from the NCSC's Check your email security service, a free UK government service. If your browser blocks the new tab, use the link that appears under the Check button.