The Domain Name System (DNS) is a hierarchical and decentralized naming system for computers, services, and other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the associated devices. A DNS server is a computer program or a physical server that responds to DNS queries and provides the IP address of the domain name.
Knowing how to check your DNS server is an important part of troubleshooting and maintaining your internet connection. If you’re having trouble connecting to a website or using an online service, checking your DNS server can help you identify and resolve the issue.