This tutorial involves two exercises intended to demonstrate the behaviour of search engines. A GET request is the norm - HEAD returns details of the document without the actual content. We can identify a web crawler from a number of clues.
Visits tend to be relatively lengthy.
Query Server We will examine google as a query server. First read the notes at google which explain how google determines ranking. I have two well used tutorials on our server. I also have a link from my SML tutorial to my SQL tutorial. Obtain a list of incoming links to my SQL tutorial - notice that the link from the sqlcourse page is much higher in rank.