What is IIS - Internet Information Server

Internet Information Services (IIS), formerly known as Internet Information Server, is a web server software developed by Microsoft. It is designed to host and deliver web content, applications, and services on the Windows operating system. IIS provides a robust and scalable platform for hosting websites, web applications, and services, supporting various technologies such as ASP.NET, PHP, and HTML.

Internet Information Server

IIS offers a wide range of features and capabilities that enable efficient web hosting and management. It supports multiple protocols including HTTP, HTTPS, FTP, FTPS, SMTP, and more, allowing for secure communication and data transfer. IIS provides advanced security features to protect websites and applications from unauthorized access and attacks, including authentication mechanisms, SSL/TLS encryption, and request filtering.

With IIS, administrators have comprehensive control over web server configuration, performance optimization, and monitoring. It offers features like application pools for isolating applications, URL rewriting for modifying URL structures, and extensive logging and monitoring tools for tracking server activity and performance.


IIS integrates seamlessly with other Microsoft technologies, such as the .NET framework, Windows Server, and Active Directory, providing a cohesive and reliable environment for hosting web applications and services. It offers scalability and load balancing capabilities to handle high traffic and ensure optimal performance.


IIS is a powerful web server solution that provides the foundation for hosting and delivering web content and applications on the Windows platform, offering security, scalability, and flexibility for organizations of all sizes.