DNS lookup, or DNS resolution, is a process that involves querying the DNS system to retrieve information about a domain name. This information can be used for various purposes, and DNS lookup utilities serve as a fundamental tool in multiple use cases.
One common use case for DNS lookup utilities is network diagnostics. When faced with network connectivity issues or domain resolution problems, administrators can employ these tools to perform manual DNS lookups. By querying specific DNS servers, they can obtain detailed information about domain records, such as A (address) records, MX (mail exchange) records, NS (name server) records, and more. This information helps identify misconfigurations, DNS caching problems, or incorrect DNS entries, leading to faster troubleshooting and resolution of network issues.
