How to use these tools together
Network troubleshooting is easiest when you combine several signals. Start with your public IP address to confirm the connection source. Use DNS lookup to verify that a domain points to the expected destination. Run a ping test for basic reachability, then check the service port if the host is reachable but the application does not respond. For websites, inspect HTTP headers to see redirects, cache behavior, security policies and status codes.
No single test explains every problem. A host can block ping while serving HTTPS normally. A port can be open while an application returns a server error. DNS can be correct while a CDN cache returns stale content. Reading the results together gives a clearer picture.