How do you install and use Fiddler4?

Fiddler4 is a powerful web debugging tool that can capture and analyze HTTP/HTTPS traffic, helping developers debug and optimize website performance. Here are the installation and usage instructions for Fiddler4.

Install Fiddler4.

1. Open the official Fiddler4 website (https://www.telerik.com/fiddler) to download the Fiddler4 installation program.
2. Run the installation program and follow the prompts to complete the installation process.
3. After installation is complete, launch the Fiddler4 application.

Utilize Fiddler4:

1. After opening Fiddler4, you can find various functional buttons on the toolbar, such as start capturing packets, stop capturing packets, clear history, etc.
2. On the left side of the main interface of Fiddler4, you can view detailed information of requests and responses in the “Inspectors” tab, including request headers, response headers, request body, response body, and so on.
3. In the main interface of Fiddler4, you can view all captured request and response information, including request method, URL, status code, response time, and more.
4. You can use the filter function to filter and search for specific requests and responses, making it easier to find and analyze data.
5. Fiddler4 also offers additional features such as simulating requests, modifying request headers, setting breakpoints, etc., to help you with more in-depth debugging and optimization work.

In general, using Fiddler4 can help you more easily capture and analyze HTTP/HTTPS traffic, leading to better website debugging and optimization.