Online Traceroute Tool
NetTool
Simulate a visual traceroute to understand how data packets travel across the internet.Updated 2026-03-16
📖 How Traceroute Works
Traceroute is a network diagnostic tool that maps the path packets take from your computer to a destination server.
🖥️ Your Computer
↓ TTL=1 → Router 1 responds with ICMP Time Exceeded
↓ TTL=2 → Router 2 responds with ICMP Time Exceeded
↓ TTL=3 → Router 3 responds with ICMP Time Exceeded
↓ ... (more hops)
↓ TTL=N → Destination reached!
🌐 Destination Server
TTL (Time to Live): Each packet has a TTL value. Each router decrements it by 1. When TTL reaches 0, the router sends back a "Time Exceeded" message, revealing its identity.
How traceroute uses TTL: It sends packets with incrementing TTL values (1, 2, 3...) to discover each router along the path.
🔧 Common Traceroute Options
| traceroute host | Basic traceroute (Unix/Mac) |
| tracert host | Windows traceroute command |
| traceroute -n host | Skip DNS resolution (faster) |
| traceroute -m 30 host | Set max hops to 30 |
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