What is the primary function of an SSL certificate?

The primary function of an SSL certificate is to enable secure, encrypted connections. SSL, which stands for Secure Sockets Layer, establishes a secure channel between a user's web browser and a server. This security is essential for protecting sensitive data during transmission, such as credit card information, personal details, and login credentials.

When a website implements an SSL certificate, it encrypts the data exchanged, making it nearly impossible for malicious entities to intercept or tamper with the information. This process not only secures the user's data but also instills trust in users since they can see indicators—such as "https://" in the URL and a padlock symbol in the address bar—that signify the connection is secure.

This function is crucial for any website that handles sensitive information, as it mitigates risks associated with data breaches and cyberattacks, providing a safe browsing experience for users. The other choices, while they may relate to websites in different contexts, do not capture the essential security role that an SSL certificate plays in encrypted communication.