Cookies, Tags, Tracking Pixels, and HTTPS <p>We use cookies, tags, and tracking pixels to know when users are logged in to SparkFun services and to track preferences such as display currencies and the rendering of product menus.</p> <p>Our analytics software, DoubleClick and CrazyEgg, use tags/tracking pixels to help keep track of how many unique visitors we’re getting, where they come from, and how they navigate our site, unless you’re browsing with Do Not Track enabled.