The cookie, set by PubMatic, registers a unique ID that identifies a returning user's device across websites that use the same ad network. The ID is used for targeted ads. This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has https://bookmarkspedia.com/story3097549/oracion-de-la-noche-cosas-que-debe-saber-antes-de-comprar