These small files or cookies are not used to track the surfing habits of visitors to other websites. When you visit the website through a google ad google will place a conversion tracking cookie. You can be assured that your personal information will not be abused in any way or stored.
Your internet browser allows you to prevent the use of cookies, to receive a warning when a cookie is installed or to remove afterwards cookies from your hard drive. Please consult the help function of your web browser.