What Is My User Agent

A What Is My User Agent tool is a simple but useful web utility that displays information about your web browser's user agent string. This tool helps you quickly identify how websites see your browser and device when you visit them.

What Does It Do?

When you visit a "What Is My User Agent" webpage, it:

1. Detects and displays your full user agent string

2. Typically parses this information to show details like:

   • Browser name and version

   • Operating system

   • Device type (desktop, mobile, tablet)

   • Rendering engine

3. May show additional network information like your IP address (unless using a VPN)

Why Is This Useful?

For Regular Users:

• Troubleshooting website compatibility issues

• Verifying if a VPN or proxy is working correctly

• Checking how a website identifies your device

For Developers:

• Testing how their website responds to different user agents

• Debugging browser-specific issues

• Verifying user agent spoofing when testing

How It Works

The tool simply reads the HTTP header your browser automatically sends with every web request. No special permissions are required, and these tools generally don't store your information.

Privacy Considerations

Most user agent tools only display the information temporarily on your screen without storing it. However, it's good practice to use tools from reputable sources.

Example Output

A typical result might look like:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

This indicates Chrome browser on Windows 10.

Conclusion

The "What Is My User Agent" tool is a straightforward but practical utility for both everyday internet users and web professionals. It provides transparency about how websites identify your browser, helping with both troubleshooting and development tasks.