HSTS
HTTP Strict Transport Security (HSTS) is a web security policy mechanism that helps protect websites against man-in-the-middle attacks such as protocol downgrade and cookie hijacking. It allows web servers to declare that web browsers should only interact with them using secure HTTPS connections, automatically redirecting HTTP requests to HTTPS and preventing users from bypassing certificate warnings.
Developers should implement HSTS on production websites to enforce HTTPS usage, mitigate SSL stripping attacks, and enhance overall security for user data. It is particularly crucial for sites handling sensitive information like login credentials, financial transactions, or personal data, as it ensures encrypted communication by default and reduces the risk of session hijacking.