NCSA Combined logs contain referrer information. Microsoft IIS logs only contain referrer information if you are using W3C log format and check the Referrer item. Reload - A request for an item followed by another request for the same item, in the same visit, with no other requests in between. These can be caused by the visitor hitting the reload button, but might result from subsequent attempts to complete a failed download, or because requests that would otherwise have been in-between, were satisfied by a cache. Request - When you type a URL into a web browser, it sends a request for the item named by that URL to the server.
Request can mean the entire request or specifically the name of the item contained in the request.
Search Phrase - Summary attempts to extract the search string typed by visitor into any of the major search engines that was used to find your site. This information is extracted from the referrer. The entire string is called the search phrase. The first request is step one, the second is step two, and so on. Steps are normally displayed as the average of many step numbers for the same item from different visits.