What DNS Server Does Microsoft Use?


Angela Bailey

When it comes to DNS servers, Microsoft has its own set of servers that it uses for its various services and products. These DNS servers play a crucial role in resolving domain names and translating them into IP addresses. In this article, we will take a closer look at what DNS server Microsoft uses and how it impacts their operations.

What is a DNS Server?

A DNS server, also known as a Domain Name System server, is responsible for translating human-friendly domain names into machine-readable IP addresses. Whenever you type in a website address in your browser, the DNS server comes into play and resolves the domain name to an IP address so that your device can communicate with the corresponding web server.

Microsoft’s DNS Servers

Microsoft operates its own set of DNS servers to support its wide range of services and products. The primary DNS server used by Microsoft is known as “msftncsi.com.” This server is specifically designed to check network connectivity and determine if you are connected to the internet.

Why does Microsoft use its own DNS servers?

By using their own DNS servers, Microsoft can have more control over their network infrastructure and better manage their services. It allows them to ensure reliable connectivity for their users and enhance the performance of their products.

The Role of msftncsi.com

The primary purpose of msftncsi.com is to perform Network Connectivity Status Indicator (NCSI) checks. When your device connects to the internet, it sends periodic requests to this particular DNS server to verify if there is an active internet connection available. This helps determine whether your device needs to switch between different network profiles or troubleshoot any connectivity issues.

How does msftncsi.com work?

When your device connects to a network, it automatically sends a DNS request to msftncsi. If the server responds with the expected result, it confirms that you have an active internet connection. If not, your device may trigger certain actions like switching to a limited connectivity profile or displaying an error message.

Secondary DNS Servers

In addition to msftncsi.com, Microsoft also uses other DNS servers for its various services and products. These secondary DNS servers are responsible for resolving domain names related to Microsoft’s online platforms, cloud services, and software updates.


In conclusion, Microsoft utilizes its own set of DNS servers to support its extensive range of services and products. The primary server, msftncsi.com, plays a crucial role in checking network connectivity status. By using their own DNS infrastructure, Microsoft can ensure reliable connectivity and optimize the performance of their offerings.

If you ever wondered what DNS server Microsoft uses, now you know!

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