The Apache HTTP Server is an open-source HTTP server for modern operating systems including UNIX, Microsoft Windows, Mac OS/X and Netware. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP s...
A flexible & easy-to-manage web server... Internet Information Services (IIS) for Windows® Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable a...
Apache is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
In terms of market share, IIS is clearly lagging behind, losing to Apache in all segments.
Apache has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Arts & Entertainment, Health and 20 other categories.
IIS hasn't got a lead over Apache in any websites category.
Apache is leading in most countries, including United States, Germany, Japan, France and 160 other countries.
IIS is leading in China and Iran.