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. A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. https://followbookmarks.com/story17756618/indicadores-sobre-oracion-de-la-ma%C3%B1ana-que-debe-saber