Website Security Scanner

Enter a domain name to perform a security check on its configuration, including SSL, HTTP headers, and email security settings. The results are presented as a score and a set of recommendations. Leave the port on 443 to scan the website itself, or pick a mail port (POP3S/IMAPS/SMTPS) to check that server's certificate instead.

These are quick checks. A more comprehensive check can be done by clicking one of the buttons under the results.

Security is not a game, so 'A' is the highest score.

Not sure which port? 443 covers the website itself, that's what most people are here for.