IIS
trend
1,728,570 websites

IIS offers both free and paid options

http://www.iis.net

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...

VS

LiteSpeed Web Server
trend
1,268,751 websites

LiteSpeed Web Server offers both free and paid options

https://www.litespeedtech.com/products/litespeed-web-server

LiteSpeed web server is a light-weight server which conserves resources without sacrificing performance, security, compatibility, or convenience. It is capable of handling multiple concurrent clients with minimal memory consumption and CPU ...

Market Share by Top Websites

1 IIS is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 Despite its recent growth, LiteSpeed Web Server is still behind IIS in all market share segments.

Websites Categories

1 IIS has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Finance and 20 other categories.

2 LiteSpeed Web Server hasn't got a lead over IIS in any websites category.

Geography

1 LiteSpeed Web Server is leading in most countries, including India, Poland, Australia, Turkey and 89 other countries.

2 IIS is leading in United States, China, United Kingdom, Italy and 68 other countries.