What are cookies, pixels, and local storage? Cookies are small files that a site or its service provider transfers to your computers hard drive through your web browser (if you allow that in its settings) that enables the sites or service providers systems to recognize your browser and capture and remember certain information. A cookie contains limited non-personal data, usually a unique identifier, to enable a website to recognise you each time you visit the website again. Cookies are used for a wide variety of purposes such as to keep you logged in or to remember your preferences and settings, to analyse how the site is used by you and to serve advertising to you.<br> <br> A pixel (also called clear GIF, web beacon, or pixel tag) is a small amount of HTML code on a web page or in an email notification. As many other services do, we use pixels to learn whether you've interacted with a certain email content.