Internet Information Services (IIS)

Category - Web Servers

Internet Information Services is an extensible web server created by Microsoft.

We have discovered 10,899,900 live websites that are using IIS.

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Technology usage statistics

Websites using IIS 10,899,900 websites
Most popular in the country United States of America
Market position in Web Servers #3
Market share in Web Servers 11.67%
Most popular version 7

Technology adoption

Recent changes in IIS usage. (See IIS Usage Changes report)
Websites that added IIS +44,789
Websites that dropped IIS -650,276
Websites that changed version of IIS 32,353

Distribution by websites popularity

Internet Information Services (IIS) detection in the top websites by popularity
Top 10k sites 695 websites
Top 100k sites 10,046 websites
Top 1m sites 112,462 websites

Websites utilizing Internet Information Services (IIS)

Top websites that use IIS

Domain Country Rank Contacts United States of America 14 United States of America 14 United States of America 103 United States of America 114 United States of America 114 United States of America 165
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Flat price per the report, subscription is not required.

Market Share

IIS market share within the Web Servers category

Geographical Distribution

Technology usage distribution by websites across the globe.

Alternative Names

  • Internet Information Services
  • Internet Information Server

Technology Information


  • 1 (1 subversions, 55 domains)
  • 2 (1 subversions, 2 domains)
  • 3 (1 subversions, 8 domains)
  • 4 (1 subversions, 330 domains)
  • 5 (2 subversions, 22,390 domains)
  • 6 (1 subversions, 356,728 domains)
  • 7 (2 subversions, 4,787,814 domains)
  • 8 (2 subversions, 2,823,481 domains)
  • 10 (1 subversions, 1,672,607 domains)

Alternative Technologies

Apache: Total 32,824,098 domains found using Apache
Nginx: Total 31,397,338 domains found using Nginx
Cloudflare Server: Total 6,835,535 domains found using Cloudflare Server
OpenResty: Total 4,174,501 domains found using OpenResty
LiteSpeed: Total 3,482,507 domains found using LiteSpeed
Microsoft HTTPAPI: Total 681,297 domains found using Microsoft HTTPAPI
GHS: Total 313,713 domains found using GHS
Tengine: Total 294,460 domains found using Tengine
Phusion Passenger: Total 256,222 domains found using Phusion Passenger
Cowboy: Total 243,431 domains found using Cowboy