Apache HTTP Server, commonly known as Apache, is a robust, open-source web server software developed by the Apache Software Foundation. It is one of the most widely used web servers globally, renowned for its flexibility, security, and performance. Apache supports a wide range of features through modules that extend its core capabilities, including SSL/TLS for secure communications, URL redirection, authentication, and load balancing. It is compatible with various operating systems, such as Unix, Linux, and Windows, and can serve both static and dynamic content. Apache’s configuration files allow fine-grained control over server settings, making it adaptable to diverse use cases from small personal websites to large-scale enterprise applications. Its active community and extensive documentation ensure continuous improvement and support, making Apache a reliable choice for web hosting and development.