DNS server: All you need to know
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As a result, when a human types in a web URL, a DNS matches it with an IP address that computers can understand. This directs your connection to the right place (the website you're attempting to reach).
Why would you want to alter your DNS settings?
You know how you may use a VPN to change your IP address and gain access to content that is geographically restricted? Changing your DNS covers your location in the same way. A VPN reroutes your connection through a different region, whereas a DNS just informs the server that you are in a different location.
So, why would you want to update your DNS server? Here are a few examples:
Use the internet to access content that is forbidden in your physical location (like Netflix)
Improve the speed of your internet connection (sometimes third-party DNS servers are faster than the default)