Internet Information Services (IIS)

Category - Web Servers

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

We have discovered 5,801,234 live websites that are using IIS.

Download website list

Technology usage statistics

Websites using IIS5,801,234 websites
Most popular in the country US
Market position in Web Servers#4
Market share in Web Servers6.28%
Most popular version10.0

Technology adoption

Recent changes in IIS usage. (See IIS Usage Changes report)
Websites that added IIS+305,318
Websites that dropped IIS-907,119
Websites that changed version of IIS284,813

Distribution by websites popularity

Internet Information Services (IIS) detection in the top websites by popularity
Top 10k sites546 websites
Top 100k sites8,693 websites
Top 1m sites95,414 websites

Websites utilizing Internet Information Services (IIS)

Top websites that use IIS

See full domain list
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 Technologies

Nginx: Total 34,207,452 domains found using Nginx
Apache: Total 30,690,408 domains found using Apache
Cloudflare Server: Total 7,014,010 domains found using Cloudflare Server
OpenResty: Total 5,047,958 domains found using OpenResty
LiteSpeed: Total 3,653,420 domains found using LiteSpeed
Pepyaka: Total 1,681,235 domains found using Pepyaka
Microsoft HTTPAPI: Total 1,139,214 domains found using Microsoft HTTPAPI
Cowboy: Total 440,125 domains found using Cowboy
GHS: Total 312,123 domains found using GHS
Tengine: Total 269,556 domains found using Tengine

Alternative Names

  • Internet Information Services
  • Internet Information Server


  • 1 (1 subversions, 70 domains)
  • 2 (1 subversions, 4 domains)
  • 3 (1 subversions, 3 domains)
  • 4 (1 subversions, 296 domains)
  • 5 (2 subversions, 18,572 domains)
  • 6 (1 subversions, 256,205 domains)
  • 7 (2 subversions, 1,137,641 domains)
  • 8 (2 subversions, 1,492,144 domains)
  • 10 (1 subversions, 1,748,414 domains)