There are also cookies that remember more detailed information about you. Perhaps your interests, your web browsing patterns, etc. This means that a site can provide you more targeted content – often in the form of ads. There are types of cookies, called <em>third-party</em> cookies, that come from sites you’re not even visiting at the time and can track you from site to site to gather information about you, which is sometimes sold to other companies. Sometimes you can block these kinds of cookies, though not all browsers allow you to.

有些 Cookie 會記住您更多、更詳細的資訊。可能是您的興趣、上網模式等等。這代表網站可以提供更針對性的內容 — 通常是廣告。有幾種類型的 Cookie 我們稱為<em>第三方</em> Cookie，它們來自您甚至沒有造訪過的網站，並且在不同網站間追蹤您、收集您的資訊，有時再轉賣給其他公司。您有時可以封鎖這些類型的 Cookie，但也不是所有瀏覽器都可以封鎖。