For most users, an SSL certificate is just a “padlock” in the browser that indicates a website can be trusted. In reality, behind this padlock lies a complex technical mechanism that encrypts data between the user’s browser and the server. An SSL certificate confirms the authenticity of a website and protects the transmission of passwords, forms, payment information, and any other data. That is why keeping it valid is critically important. When the expiration date of a certificate approaches or the website’s parameters change, the owner faces two actions that may seem similar at first glance — renewal and reissue. Although these terms are often used as synonyms, in practice they refer to different processes with different consequences.
