What is the purpose of an SSL certificate?

The primary purpose of an SSL certificate is to secure data transfer between a web server and a client. SSL, which stands for Secure Sockets Layer, is a standard security protocol that establishes an encrypted link between a web server and a browser. This encryption ensures that any data transmitted over this connection remains private and protected from eavesdroppers. This is especially crucial for sensitive transactions, such as online purchases or the exchange of personal information, where confidentiality must be maintained.

When a website employs an SSL certificate, users will see indicators in their browser, such as a padlock symbol, assuring them that the site is secure. This not only helps protect user data but also builds trust and confidence, which can be essential for businesses operating online.

Other options, such as improving website loading speed, managing user sessions, or providing analytics for website traffic, address different aspects of web management and user experience, but they do not pertain to the core function of an SSL certificate, which is focused on data security during transmission.