DNS Lookup tool is a network utility that resolves domain names into their corresponding IP addresses. When a user enters a domain name into a web browser, the browser uses DNS to resolve the name into an IP address that identifies the web server hosting the website.
The DNS Lookup tool queries a DNS server to obtain the IP address associated with a domain name. It can also retrieve other DNS records associated with a domain, such as mail server (MX) or name server (NS) records.
The DNS Lookup tool is useful for troubleshooting DNS-related issues, such as DNS misconfigurations or DNS cache problems. It can also be used to verify that DNS changes have propagated across the Internet and are being correctly resolved by DNS servers.