What are the component of a web address?

Answer 1

Let's take www.wiki.com as an example

Www is the first part telling the browser that you are trying to access the world wide web. The second part would be the actual name of the website which is in our example wiki. Last comes the .com which is more of a direction giver (.com for most American sites,.de for German,government site's are .gov and organizations .org)

Http:// is the browser protocol but typing it in is mostly optional since most browser use this as a default. If it was www.wiki.com/pic, pic would be your file name
Protocol, Domain Name, Domain Extension, Path & Filename. The protocol such as HTTP or HTTPS or FTP. The domain name is the unique identifier of the server such as answers.com is the domain name of this site. Domain extension is how your website is identified on what type such as educational or commercial. Ex .edu , .com, .net, .co, .gov ,etc . Path and filename is the location of the files of the server when you navigate through a website such as the main page which is usually index.html or index.php.