What are Cookies?

Like most websites, we use cookies and similar technologies to remember things about you so that we can provide you with a better experience.

• Cookies are small data files stored on your browser or device. They may be served by the entity that operates the website you are visiting (“first-party cookies”) or by other companies (“third-party cookies”). For example, we partner with third-party analytics providers, like Google, which set cookies when you visit our websites. This helps us understand how you are using our Services so that we can improve them.
• Pixels are small images on a web page or in an email. Pixels collect information about your browser or device and can set cookies.
• Local storage allows data to be stored locally on your browser or device and includes HTML5 local storage and browser cache.
• SDKs are blocks of code provided by our partners that may be installed in our mobile applications. SDKs help us understand how you interact with our mobile applications and collect certain information about the device and network you use to access the application.
• Web beaconsare small graphic images or other web programming code called web beacons (also known as “1×1 GIFs” or “clear GIFs”) may be included in our online service’s pages and messages. Web beacons may be invisible to you, but any electronic image or other web programming code inserted into a page or e-mail can act as a web beacon. 
• Clear gifs are tiny graphics with a unique identifier, similar in function to cookies. In contrast to HTTP cookies, which are stored on a user’s computer hard drive, clear gifs are embedded invisibly on web pages and are about the size of the period at the end of this sentence. 
• Deterministic Finger-printing technologies: If a user can be positively identified across multiple devices, for instance, because the user has logged into a platform such as Google, Facebook, Yahoo or Twitter, it can be “determined” who the user is for purposes of improving customer service.
• Probabilistic Finger-printing: Probabilistic tracking depends upon collecting non-personal data regarding device attributes like operating system, device make and model, IP addresses, ad requests and location data, and making statistical inferences to link multiple devices to a single user. Note that this is accomplished through proprietary algorithms owned by the companies performing probabilistic finger-printing. Note also that in the EU IP Addresses are personal information. 
• Device Graphs can be created by combining non-personal data regarding use of smartphones and other devices with personal log-in information to track interactions with content across multiple devices.
• Unique Identifier Header (UIDH)is the address information that accompanies Internet (http) requests transmitted over an ISP’s wireless network. For example, when a customer types on his or her phone the web address of a retailer that request travels over the network and is delivered to the retailer’s website. The information included in that request includes things like the device type and screen size so that the retailer site knows how to best display the site on the phone. The UIDH is included in this information, and can be used as an anonymous way for advertisers to be able to determine that the user is part of a group that a third-party advertiser is attempting to reach. It is important to note that the UIDH is a temporary, anonymous identifier included with unencrypted web traffic. We change the UIDH on a regular basis to protect the privacy of our customers. We do not use the UIDH to collect web browsing information and it does not broadcast individuals’ web browsing activity out to advertisers or others. 
• Embedded Script is programming code that is designed to collect information about your interactions with the online service, such as the links you click on. The code is temporarily downloaded onto your device from our web server or a third-party service provider, is active only while you are connected to the online service, and is deactivated or deleted thereafter.
• ETag or entity tagis a feature of the cache in browsers, an ETag is an opaque identifier assigned by a web server to a specific version of a resource found at a URL. If the resource content at that URL ever changes, a new and different ETag is assigned. Used in this manner ETags are a form of device identifier. ETag tracking may generate unique tracking values even where the consumer blocks HTTP, Flash, and/or HTML5 cookies. 
• Unique Device Tokens: For each user that accepts push notifications in mobile apps, the app developer is provided with a unique device token (think of it as an address) from the app platform (e.g., Apple and Google).
• Unique Device ID: The unique series of numbers and letters assigned to your device.