HTTPS monitoring includes an optional SSL checker that validates Secure Socket Layer Certificates. Receive alerts when SSL problems occur or when expiration dates approach.
When a browser visits a website whose web address starts with https, communication with the site is encrypted to help ensure privacy. Before starting the encrypted communication, the website will present the browser with a certificate to identify itself.
If the browser cannot verify that the certificate is associated with the website then the user will receive a warning message, such as “This Connection is Untrusted” or “This site’s security certificate is not trusted!” After receiving this type of message most users will abandon the website. Therefore, an SSL Certificate checker is important for retaining users’ trust in a website.
Dotcom-Monitor’s SSL testing verifies the certificate and validates the website to which it is installed. Properties such as Certificate Authority (CA) and Common Name (CN) should not change. SSL Certificate Monitoring detects changes that may indicate problems that are exposing website users to vulnerabilities.
An SSL certificate can become invalid and be revoked prior to the expiration validity period. An SSL test verifies whether or not the revocation state has changed. Revocation can occur due to a change of name, change of association between a subject and CA, and compromise or suspected compromise of the corresponding private key. Under these types of circumstances, the issuing CA may revoke the certificate.