What is the significance of 'HTTPS'?

The significance of 'HTTPS' lies in its function as a secure version of HTTP, standing for HyperText Transfer Protocol Secure. The main feature that distinguishes HTTPS from HTTP is the encryption it provides, which protects data transmitted between a user's browser and the web server. This encryption ensures that sensitive information, such as passwords, credit card numbers, and personal details, is safeguarded against eavesdroppers and potential attackers.

When a website uses HTTPS, it utilizes a protocol called SSL (Secure Sockets Layer) or its successor TLS (Transport Layer Security) to create a secure connection. This is crucial for maintaining privacy and ensuring that data integrity is upheld during transmission. In addition, web browsers often indicate secure connections with a padlock icon in the address bar, which reassures users that their connection is secure.

Other options present misunderstandings about the purpose and function of HTTPS. While HTTPS is not an outdated version of HTTP, it actually enhances it with security features. It does not pertain specifically to local servers, nor does it simplify website design; its primary focus is on securing data transfer over the internet, which is vital in today's data-driven world.