Microsoft IIS

Microsoft, Redmond, Washington, United States

Microsoft Internet Information Services (IIS) is an extensible web server developed by Microsoft for Windows systems.

It has a modular architecture with standalone components, supports HTTP, HTTP/2, HTTP/3, HTTPS, FTP, FTPS, SMTP, and NNTP protocols, enables worker process isolation through application pools, and provides native integration with ASP.NET and ASP.NET Core.

According to our data, Microsoft IIS is the 4th most popular web server on the web.
It has 5% of the web server market share and is detected on 3.5% of all websites.

Statistics based on 3.3M+ analyzed websites. About this data

💸 Pricing

Microsoft IIS is available in both free and paid versions.

Free version ✔️IIS Express
Bundled with Windows Server, which is $1,176+

📊 Rankings and Market Share

🏆 Microsoft IIS Awards

⚡ Sites Using Microsoft IIS

We have data on 117,371 websites that use the Microsoft IIS web server. Here is a list of some of the top ranked ones.

The highest rated site using Microsoft IIS is samsung.com.

#WebsiteRankCountryLanguage
1 samsung.com #73 Korea English
2 outlook.com #74 United States English
3 stackoverflow.com #101 English
4 betway.co.za #227 Guernsey
5 wb.gov.in #261 India English
6 sagepub.com #342 United Kingdom English
7 tjsp.jus.br #474 Brazil Brazilian Portuguese
8 computrabajo.com #527 Spanish
9 wordwall.net #716 Ireland English
10 thscore.mobi #728 United States Thai
11 ninisite.com #846 United Kingdom Persian
12 stackexchange.com #1,002 English
13 chess-results.com #1,129 India English
14 chosun.com #1,133 Korea Korean
15 powerbi.com #1,166 United States English
16 anthology.com #1,168 English
17 uefa.com #1,396 Switzerland English
18 portal.gov.cz #1,400 Czech Republic Czech
19 oregon.gov #1,617 United States American English
20 paylocity.com #1,783 English

📈 Usage Statistics

Most of the sites that use Microsoft IIS:

Most of the sites using Microsoft IIS are from the United States, China, and the United Kingdom.

  • United States 24.1%
  • China 7.7%
  • United Kingdom 6.5%
  • Italy 6.3%
  • Turkey 4.1%
  • India 3.8%
  • Netherlands 2.7%
  • Germany 2.4%
  • Canada 2.4%
  • Other 40%

Most Microsoft IIS users speak English, Chinese, or Italian.

  • English 52.7%
  • Chinese 8.4%
  • Italian 4.9%
  • Spanish 3.8%
  • Turkish 3.7%
  • German 2.7%
  • Portuguese 2.7%
  • Dutch 2.1%
  • Czech 1.9%
  • Other 17.1%

The Microsoft IIS web server is especially popular on .com and .org top-level domains.

  • .com 42.7%
  • .org 6%
  • .it 3.9%
  • .net 3.3%
  • .co.uk 2.8%
  • .cn 1.9%
  • .nl 1.6%
  • .dk 1.6%
  • .de 1.4%
  • Other 34.8%

The primary market segments for websites utilizing Microsoft IIS include business, marketing and merchandising, and education and reference.

  • Business 22%
  • Marketing/Merchandising 9.2%
  • Education/Reference 9.2%
  • Online Shopping 6.2%
  • Health 4.3%
  • Internet Services 4.2%
  • Travel 4.2%
  • Software/Hardware 3.7%
  • Public Information 3.7%
  • Other 33.3%

🔢 Microsoft IIS Versions

The most common version of Microsoft IIS is 10.0, used by 78.2% of sites where versions were detected. In addition, 15.1% of sites use Microsoft IIS 8.5, and 3.8% use Microsoft IIS 7.5.

  • 10.0 78.2%
  • 8.5 15.1%
  • 7.5 3.8%
  • 8.0 1.5%
  • 6.0 0.8%
  • 7.0 0.4%
  • 5.0 0.3%

🕵️ Similar Technologies

These are some of the best Microsoft IIS alternatives.

RankName
1
Nginx
Seattle, Washington, United States

A lightweight, high-performance open-source HTTP server and reverse proxy.

FreeOpen source$3,500+/year
2
Apache
Wilmington, Delaware, United States

A cross-platform open-source web server that has been available since 1995.

FreeOpen source
3
LiteSpeed Web Server
Newtown Square, Pennsylvania, United States

A high-performance commercial web server that can operate as a drop-in replacement for Apache, using the same configuration files and control panel integrations.

FreeOpen source$10+/month
5
OpenResty
Millbrae, California, United States

An Nginx distribution that bundles the LuaJIT interpreter to run Lua scripts directly inside the web server.

FreeOpen source
11
Kestrel
Redmond, Washington, United States

An open-source, cross-platform web server for ASP.NET Core that can serve HTTP requests on Windows, Linux, and macOS.

FreeOpen source

🆚 Compare Alternatives

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💬 Frequently Asked Questions

What is the company behind Microsoft IIS?

Microsoft IIS is owned by Microsoft Corporation, headquartered in Redmond, Washington, United States.

Can I use Microsoft IIS for free?

Yes, there is a free version with limited functionality.

Which country uses Microsoft IIS the most?

The majority of Microsoft IIS users are from the United States.

Who uses Microsoft IIS?

According to our data, Microsoft IIS is used on thousands of sites, including such established ones as samsung.com, outlook.com, and stackoverflow.com.

Is Microsoft IIS used on government websites?

Yes, for example, it is used by wb.gov.in, portal.gov.cz, and oregon.gov. Overall, we found Microsoft IIS on 662 government sites in the United States.

Do academic institutions use Microsoft IIS?

Yes, quite a few! Overall, we know of 530 academic websites in the United States that use Microsoft IIS.

How does Microsoft IIS compare to its competitors?

Microsoft IIS is one of the most popular web servers, second only to Nginx, Apache, and LiteSpeed Web Server.

What are the alternatives to Microsoft IIS?

Alternatives and possible competitors to Microsoft IIS may include Kestrel, Nginx, and Apache.

👉 See Also

🗃️ About This Data