Searching a pattern in a dynamically generated URL

Hello All, Is there a way to store a dynamically generated URL e.g http://www.google.com/search?q=ASP+linux+dynamic+URL&btnG=Google+Search in some buffer , so that we could parse it or search some pattern in it e.g let us say “linux”. Based on whether that pattern is present or not, I have to take some decision at the IP level (network layer level).I will decide whether to give preferential bandwidth to a certain URL ( basically higher data transfer rate to the connection which is downloading that URL ) based on the presence of the pattern in the dynamically generated URL. I don’t know if I am asking a very simple question, since I a total newbie As far as ASP , Chilli ,PHP etc are concerned. Thanks a lot in advance Cheers !! Aditya