What is Microsoft IIS?
ServerMicrosoft IIS is a web server: Microsoft Internet Information Services. Tech Stack Detector identifies Microsoft IIS on any website by analysing HTTP response headers.
Microsoft IIS is a web server (Server), detected on 3 websites in our index. See websites using Microsoft IIS ↓
How Tech Stack Detector detects Microsoft IIS
Microsoft IIS is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.
- HeaderServer header identifies IIS
Websites using Microsoft IIS
Recently scanned websites where we detected Microsoft IIS. Open one to see its full technology stack.
Often used with Microsoft IIS
Technologies most frequently detected alongside Microsoft IIS across scanned websites.
Alternatives to Microsoft IIS
Other Server technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.
Compare Microsoft IIS
Side-by-side comparisons of Microsoft IIS with other Server technologies.
Popular technologies
The technologies most often detected across all websites scanned on Tech Stack Detector.
Frequently asked questions
What is Microsoft IIS?
Microsoft IIS is a web server: Microsoft Internet Information Services. Tech Stack Detector identifies Microsoft IIS on any website by analysing HTTP response headers. Its official website is https://iis.net.
How can I tell if a website uses Microsoft IIS?
Enter any URL into Tech Stack Detector and it reports whether Microsoft IIS is present, with a confidence score and the exact evidence it matched. Detection is based on HTTP response headers. No login or crawling of the site is required.
How many websites use Microsoft IIS?
Microsoft IIS has been detected on 3 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.
What are some alternatives to Microsoft IIS?
Other Server technologies Tech Stack Detector detects include Nginx, LiteSpeed, Apache HTTP Server, Envoy, OpenResty and Kestrel. You can compare any of them side by side with Microsoft IIS.
Data last updated October 20, 2026 · based on 618 recently scanned websites.