I want to write a spider which detect if a web site is using a script in the head. I also need to test it I have one server, but I dont know how to create several URL with different IP´s for it.
I never have do it before. Could someone put me in the right track?
As a Java library, many people like to use the httpclient (http://hc.apache.org/httpclient-3.x/) to programmatically scrape URLs. Personally, I just use the java.net.URL class, which seems to work fine (and it is built into the core library).