Abbreviation of Uniform Resource Locator, the global address of documents and other resources on the World Wide Web. The first part of the address is called a protocol identifier and it indicates what protocol to use, and the second part is called a resource name and it specifies the IP address or the domain name where the resource is located. The protocol identifier and the resource name are separated by a colon and two forward slashes.
Web Hosting service use the term bandwidth it is typical that they too mean traffic sent over their network, however the interval is over the course of one month. Your web host may offer 150GB of bandwidth for your hosting account - meaning that over one month or billing cycle, you can push 150 gigabytes of information over their network/through your web site and be within your accounts limits.