Search Engine Referrals Confluence Plugin is a Confluence plugin that displays the most recent searches on Google. When someone enters search terms on Google and clicks on one of the search results, the search terms are sent to the found Web site in the "referer" part of the HTTP request. This plugin collects this information and displays it to the user. A click on the search result opens the page Google has found. A click on the search engine icon at the left displays the corresponding Google search result page.
Google Custom Search is a class that performs searches against a Google Custom Search engine, processing the response (search results and/or spelling suggestions) into properties of the object. It uses either cURL or the HTTP stream wrapper, depending on what is available on the server. The user can also specify the character encoding for the search query. Results are also made available in that encoding.