If yes, then I recommend a DNS flush.
You will see a significant increase in speed (and faster Internet speeds)
Mountain Lion or Lion
If you are running Mac OS X 10.7 or 10.8, you need to do the following:
Open up the command terminal.
Run the command sudo killall -HUP mDNSResponder
Snow Leopard
If you are running Mac OS X 10.6, you need to do the following:
Open up a command terminal.
Run the command dscacheutil -flushcache
Leopard and below
If you are running Mac OS X 10.5.1 or below, you need to do the following:
Open a command terminal.
Run the command lookupd -flushcache
