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Open the command prompt and press Win R to enter cmd to enter; 2. Enter tracert plus the destination URL or IP, such as tracert google.com; 3. View the output results, each line shows a jump node and response time, and the asterisk indicates timeout; 4. You can use -d (not parsing the host name), -h (set the maximum number of hops), -w (set the timeout time) and other parameters to optimize query; 5. It is mainly used to troubleshoot network delay, packet loss or connection failure problems, and locate fault points by analyzing abnormal nodes in the path; 6. Note that some routers or firewalls will block ICMP and cause timeout, which is not an actual failure. It is recommended to test multiple times and compare the results of normal websites to accurately judge the network status.

The tracert (Trace Route) command in Windows is a built-in network diagnostic tool that helps you see the path data takes from your computer to a destination, like a website or server. It shows each hop (router or gateway) along the way and how long it takes to reach each point. This can help identify where network delays or failures occur.

Here's how to use it effectively:

1. Open Command Prompt

To run tracert , you need to open the Command Prompt:

• Press Win R , type cmd , and press Enter .
• Or search for "Command Prompt" in the Start menu and open it.

2. Basic Usage of tracert

Type the following command and press Enter :

 tracert example.com

Replace example.com with the actual website or IP address you want to trace.

For example:

 tracert google.com

This will display a list of routers (hops) between your computer and the destination, along with the time (in million seconds) it took to reach each hop.

3. Understanding the Output

The result typically shows three columns of time (ms) and up to 30 hops. Each line represents a router or network point:

 1 2 ms 1 ms 1 ms 192.168.1.1
2 10 ms 9 ms 10 ms 10.0.0.1
3 15 ms 16 ms 14 ms 203.0.113.25
...

• The first few hops are usually your local network devices (like your router).
• Later hops are your ISP and external networks.
• If you see * * * or "Request timed out," it means that hop didn't respond — not always a problem, as some routers block trace requests.

4. Useful tracert Options

While tracert doesn't have as many options as some other tools, here are a few useful switches:

• -d – Skip hostname resolution (faster):

   tracert -d google.com

  This shows IP addresses only, without trying to resolve each to a name.

• -h – Set maximum number of hops:

   tracert -h 20 google.com

  Limits the trace to 20 hops instead of the default 30.

• -w – Set timeout (in million seconds) for each reply:

   tracert -w 5000 google.com

  Waits up to 5 seconds per reply instead of the default 4 seconds.

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  5. Common Use Cases

  • Troubleshooting slow connections : If one hop shows high latency, that might be where the bottleneck is.
  • Checking for packet loss : Repeated timeouts at a specific hop may indicate network issues.
  • Diagnosing unreachable sites : If the trace stops early, the problem is likely in your local network or ISP.

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  6. Tips and Notes

  • Some websites or firewalls block ICMP (the protocol tracert uses), so timeouts don't always mean a real problem.
  • Compare results with a known working site (like google.com) to see if the issue is isolated.
  • Run the command multiple times — network paths can change.

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  Basically, tracert is a simple but powerful way to see what's happening between your PC and a remote server. It won't fix network issues by itself, but it helps pinpoint where to look.

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