Diagnostic Tools
Ping tests basic connectivity. Traceroute shows the network path. DNS lookup checks name resolution. Bandwidth tests measure speed. Port tests check service accessibility. Each tool answers a different question about your network health.
Common Network Problems
High ping means latency issues. Packet loss means reliability problems. DNS failures mean name resolution is broken. Timeouts indicate blocked ports or routing issues. Low bandwidth means congestion. Our DNS speed test is a good starting point for DNS-related issues.
Step-by-Step Troubleshooting
Start with a ping test to check basic connectivity. Then test DNS resolution. Run a traceroute to find slow hops. Test speed to see if you get what you pay for. Check for packet loss. Use a port checker if specific services do not work. Fix issues one at a time.