A designated home page is the default web page a server displays when someone accesses the root URL of a website. Different web servers come with predefined default file names for the home page. For example, Apache web server uses the default name index.html. The server for Microsoft's NET platform uses default.html as its default homepage. Different programming languages also dictate the file extension and, consequently, the filename of the home page. For example, if the website is using the programming language PHP, the home page file might be named as index.php. If the website is using JavaScript, the file of the home page might be named as index.js.
When viewing files from a web server, the Inspector Network tab output screen provides details of HTTP communications, while the local computer lack HTTP-specific information. For example, when viewing files from a web server, you will see HTTP methods, status codes, and headers. When viewing files from the local computer, those specific HTTP-specific details are absent.
The favicon.ico file has a status 200 because the server was successful retrieving the file from the specified location. The main.css and main.js files has a 404 status because the server could not locate these files.
My web server's URL, “https://web.engr.oregonstate.edu/~azadg/a1-azadg/”, can be broken down into the scheme, subdomains, host domain, and resource path. The scheme “https://” indicates a secure connection using the HTTPS protocol. The subdomains web and engineering abbreviation after direct the request to a specific web server within the engineering department of Oregon State University. The host domain “oregonstate.edu” is the university's registered domain under the .edu top-level domain. The resource path, which is everything after the .edu/, accesses the home directory of the user and navigates to a specific folder or resource within that user's directory.