The Redmi 13C 5G supports setting Private DNS (Domain Name System), which is a feature that allows you to set a custom DNS carrier for the internet connection instead of using the default DNS. Using a private DNS can improve privacy by preventing ISPs (Internet Service Providers) from tracking your browsing habits since the DNS queries are sent to a different carrier. To set Private DNS on your phone, please refer to the following steps: 1. Go to the [Settings] APP on your phone; 2. Select [More connectivity options]; 3. Tap [Private DNS]; 4. Select from the options according to your needs. Note: When you select the Private DNS provider hostname, you need to enter hostname of DNS provider.