A DNS resolver, also called a recursive resolver, is a server designed to receive DNS queries from web browsers and other applications. The resolver receives a hostname - for example, - and is responsible for tracking down the IP address for that hostname. ... When it receives the IP, the query is resolved.

What does DNS resolver do?

A DNS resolver, also known as a resolver, is a server on the Internet that converts domain names into IP addresses. ... When you send your request to the DNS resolver, the resolver accesses other servers in the DNS to obtain the address, then sends you the response.

Should I run my own DNS resolver?

If not for learning, you almost certainly should NOT run your own DNS servers. As mentioned above, for smaller sites, your domain registrar probably provides DNS hosting for free. For users that need more control, greater uptime, or improved performance, there are paid DNS hosting providers that do a great job.