In this article, I’m going to be explaining as simply as possible how Web Hosting Bandwidth (sometimes mentioned as Data Transfer) works, and I’ll also try to answer all the questions that might come to mind when thinking about Bandwidth for your websites.
Bandwidth is the amount of data that can be Transmitted between users (Website Visitors) and a Server concurrently.
It is measured in terms of MB/s (Megabyte Per Second). But most Hosting companies express Bandwidth in terms of GB/s (Gigabyte Per Second) to simplify things.
You can think of Bandwidth as a file transfer
When you upload your website files on a web hosting server and configure it to go live, each time a person visits any part of your website (index.html or some inner page), an HTTP request is sent over to your server to fetch a copy of the file/page to be served on the visitor’s browser.