SSL stands for Secure Sockets Layer. It is a cryptographic protocol that ensures secure communication between a user's web browser and a web server. SSL encrypts data transmitted between the two, protecting it from unauthorized access and ensuring data integrity.

SSL is crucial for websites because it provides a secure connection, encrypting sensitive data like login credentials, personal information, and financial details. It helps prevent data breaches, man-in-the-middle attacks, and eavesdropping by malicious entities.

When a user connects to a website with SSL, their browser requests the server's digital certificate. The server responds with its certificate, and the browser verifies its authenticity with a Certificate Authority (CA). Once verified, the browser and server establish an encrypted connection for secure data exchange.

A website with an SSL certificate will have "https://" at the beginning of its URL instead of "http://". Additionally, modern browsers display a padlock icon or other indicators to show that the connection is secure.

Yes, it's still beneficial to have SSL even if your website doesn't handle sensitive information. SSL helps boost your website's security and build trust with your visitors. Moreover, modern browsers may display warnings for non-SSL websites, potentially discouraging users from accessing them.