Reset DNS Cache in Windows 10

The MFTNEXT Team

5 years ago

How to Reset DNS Cache in Windows 10

The DNS cache is one of the important network parameters which allows you to browse the Internet and resolve remote computer names faster. This post explains what is DNS, and why and how you can reset its cache.

DNS stands for Domain Name System. A Domain Name System is a service that allows you to type a friendly domain name in the web browser to load a web page.

Any computer connected to a network (and to the internet) receives an IP address to communicate with other devices. However, these addresses are not easy for us to remember (ex.: 108.19.129.45), as such DNS provides the mechanism to translate friendly domain names, such as google.com, into an IP address that your PC can recognize.

Windows comes with an option which stores the specified DNS server address and makes the TCP/IP stack use that IP address. It refers to this user-specified DNS service or gateway-specified service to resolve the domain name of a website to its IP address and load it in your web browser.

In most cases, your Internet Service Provider (ISP) provides its own DNS server(s) which [usually] works reliable. These DNS servers are usually configured in your router or automatically fetched from the ISP via DHCP.

Windows makes the name resolution process faster by caching resolved addresses. If the IP address of a website can be found in the local cache, it will be resolved faster. The web site will be opened instantly without extra requests to Internet servers.

Contents

See your current DNS Cache

To reset DNS cache in Windows 10,

See your current DNS Cache

Open a new command prompt as Administrator
Type this command: ipconfig /displaydns
The command will produce a very long output.

For your convenience, you can redirect it to a file. Use the following command:

ipconfig /displaydns >%USERPROFILE%\Desktop\dns.txt

Then you can open the dns.txt file created on your Desktop and inspect its entries.

If the information in the DNS cache is out of date, some sites may not open or appear broken in the browser. If you encounter such a problem having a reliable network connection, you should try to reset the DNS cache.