Traceroute
Trace the network path and measure hop-by-hop latency to any destination
This page provides original, human-reviewed information about traceroute analysis, explaining TTL-based hop discovery, interpreting timeouts and asterisks, and locating where latency is introduced along a path.
About Traceroute
Traceroute is a network diagnostic tool that displays the path packets take from a source host to a destination host. It works by sending packets with incrementally increasing TTL (Time To Live) values. Each router decrements the TTL by 1 when forwarding packets, and when TTL reaches 0, the router returns a "time exceeded" message.
Primary Uses:
- Diagnose network connectivity issues
- Identify bottlenecks in network paths
- Analyze sources of network latency
- Verify network routing configuration
- Monitor network performance changes
Difference from Ping:
- Ping only tests end-to-end connectivity
- Traceroute shows the complete network path
- Traceroute can pinpoint where problems occur
- Traceroute provides latency info for each hop
Command Format & Usage:
-h max_hops- Maximum number of hops-w timeout- Wait timeout per reply-q queries- Number of queries per hop
tracert google.comtraceroute -h 15 8.8.8.8tracert -w 3000 cloudflare.com
How to Read Results:
Usage Considerations
Limitations:
- Some routers may not respond to traceroute requests
- Firewalls may block ICMP or UDP packets
- Load balancing can cause inconsistent paths
- Network congestion affects measurement accuracy
Best Practices:
- Run multiple tests for more accurate results
- Test at different times of day
- Combine with ping tests for comprehensive analysis
- Pay attention to hops with unusually high latency
Related Tools
Need Help?
Our tools are designed to be intuitive, but if you need assistance, we're here to help.
About Our Tools
Professional-grade email and DNS diagnostic tools trusted by IT professionals worldwide.