There are a few ways to determine if a DNS server is down:
1. Check if websites are inaccessible: If you are unable to access any websites or if they are taking too long to load, it could be a sign of a DNS server issue.
1. Ping the DNS server: You can use the ping command on your computer or a command-line tool to see if the DNS server is responding or not. If you receive an “unreachable” response, it may indicate that the DNS server is offline.
1. Check DNS server status: Some DNS servers have a status page that you can check. Look for any notifications or alerts that indicate that the server is experiencing problems.
1. Try a different DNS server: If you are still not sure if the DNS server is down, you can try switching to a different DNS server and see if that solves the issue. If the problem is resolved, it may indicate that the original DNS server was down or experiencing issues.
