what is the Different between traffic cost and hosting cost?

Different between traffic cost and hosting cost?:mad:

Umm... those terms aren't necessarily related at all. I'm also not even too sure what "traffic cost" could exactly be referring to.

Can you put these into context?

what i mean is when do I know I need a dedicated server for my site?

I'm going to assume you're starting on a shared host.

When you start exhausting all resources on that (which can happen quickly depending on the site), you'll want to bump up to what's called a Virtual Dedicated server. A Virtual Dedicated is a hybrid of a shared server and a fully dedicated.

Usually a virtual dedicated can be expanded quite large. Most hosts allow you to add more RAM as needed. I run a virtual dedicated on Slicehost. slicehost.com They allow you to expand up to 15.5GB of RAM. That's A LOT.

You should only really expand beyond a virtual dedicated when you need a lot of heavy customization and strict control over your hardware. And massive massive loads of traffic. The key with any website is RAM. The more RAM the better. In a server, it's almost impossible to have too much.

If you're in that realm for a while, you'll learn enough, and you'll just know when it's time to kick it up to a fully dedicated server.