What is Bandwidth?
Bandwidth is a measure of how much data is transferred through multiple web protocols. Right now, HTTP, POP, IMAP, FTP, and SMTP are all recorded in your bandwidth usage statistics. This measure of data transfer counts toward your bandwidth limit. Check the Account & Server Stats tab on the left side of your screen to see how much monthly bandwidth you have left to use.
Key Terms to Understand
HTTP - This is all data in your site that is accessed using a web browser in combination with http://. This includes any pages that are viewed, images, videos, other media, files downloaded through links, and some other traffic.
POP - This is any data accessed using the POP email protocol. Most users of email clients such as Outlook Express will choose to view their email using the POP protocol. POP simply gets email from the mail server and does not give an indication of whether or not the email has been read before.
IMAP - This is another type of email protocol. IMAP is a state aware protocol, meaning that it understands which mail has been read before.
FTP - This is all data in your site that is accessed using a web browser in combination with ftp:// or using an ftp client. This includes both files transferred to your site using FTP and files transferred from your site using FTP. Anonymous FTP traffic is included in this count.
SMTP - This is a protocol using for outgoing mail. All mail that is sent will count towards this protocol's bandwidth usage.
What is Traffic?
Traffic is simply a term used to measure the amount of data being transferred to and from your site. Just like a lot of cars on the freeway going to and from a destination, data is going to and from your site. The data that is going and coming is counted by its size in Megabytes. This count is reflected in your Bandwidth Usage in the Account Info and Stats areas.