There are different levels and different plans and different qualities and costs for each type of hosting plan.
How are you setup?
Small site? Trying to hold down the costs? Maybe you got shared hosting :)
A successful site that requires more resources? Maybe you have managed or dedicated hosting. :)
Oh my, you are the direct competition of google.com and require at least one of your own hardware placed on location in the hosting provider, with sponsors and all. Co-location is your thing :)
Please let us know :)
(I have made the poll Multiple choice, because I understand there are users with more then one setup).