Google recently announced that it will now use the encryption protocol called SSL (Secure Sockets Layer) to encrypt all the searches that people do using the Google Search Engine if they are signed-in using their Google Account login.
This means that these logged-in Google users will be redirected to https://www.google.com (note the extra’s’) from http://www.google.com (non SSL) once they are signed-in with their Google account. This switch to SSL encrypts your search query which means that the sites the user visits after clicking on the results from Google will no longer contain the “Referrer data” (data which tells the destination site how it was found, whether from a search term entered into a search engine or from an external link) except in the case of ads.
Only Google and your web browser will see your searches and a third party (not even Google Analytics) will not know what is being searched. The new encryption will block referrer data, which means site owners will know that you came from Google, but won’t receive information on what the exact search was. […]