What is the purpose of using "Custom Domains" in Salesforce?

The purpose of using "Custom Domains" in Salesforce centers around improving branding and enhancing security. By implementing a custom domain, organizations can create a more cohesive brand experience for their users, maintaining a consistent domain name that aligns with their business identity. This not only strengthens recognition and trust among clients but also differentiates the Salesforce environment from other applications.

In addition to branding, custom domains significantly enhance security. They allow organizations to leverage various security features, such as enforcing Single Sign-On (SSO) policies and customizing SSL certificates. This ensures a secure connection that protects sensitive data and fosters confidence in the system's integrity.

Custom domains are not related to data storage capacity, access privileges, or multilingual functionality, making this option the most appropriate answer regarding their purpose in Salesforce. By focusing on branding and security, organizations can create an effective and secure user experience within the Salesforce platform.