Port 11501 is often used by development tools and Integrated Development Environments (IDEs) such as Visual Studio and other custom applications. In networking, ports are endpoints used for communication between devices. While port 80 is typically used for HTTP (Hypertext Transfer Protocol) traffic, custom ports like 11501 are often used for specialized services, testing, and development purposes. It's a non-standard port that can be configured for various applications that require unique port assignments.

http://localhost:11501

Many web servers and applications allow configuration to listen on custom ports like 11501. For example, if a web server is running on localhost (127.0.0.1) and listening on port 11501, you can access it in a web browser by following these steps:

1. Ensure the service is running: Start the application or web server that listens on port 11501.
2. Open your web browser: Launch Chrome, Firefox, or Safari that you use to access the internet.
3. Type in the address bar: Enter http://localhost:11501.
4. Interact with the service: Use the web interface or application running on port 11501 as intended.

Port 11501 is widely used by development tools like Visual Studio and other IDEs to provide development environments and debugging services. Custom ports like 11501 are often used to avoid conflicts with standard ports and to provide dedicated environments for specific services. It's generally considered a flexible option for various applications and development purposes.