LiteSpeed is a web server that provides faster loading of websites and better security compared to other free web servers like Apache. It protects websites from DDoS and DoS attacks through built-in anti-DDoS features. LiteSpeed also enhances performance by serving static content and PHP faster, which can reduce server loads and hardware costs compared to adding more servers. Using LiteSpeed rather than upgrading hardware can save money while improving a website's uptime, security, and visitor experience.