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.

Postoje i kolačići koji čuvaju detaljnije informacije o vama. To može da uključuje vaša interesovanja, navike pretraživanja weba i dr. To znači da web stranica može da vam ponudi ciljaniji sadržaj – često u obliku oglasa. Postoje druge vrste kolačića, tzv. <em>kolačići trećih strana</em>, koji dolaze sa web stranica koje niste ni posjetili, ali mogu da vas prate od stranice do stranice i prikupljaju podatke o vama koji se onda nekada prodaju drugim kompanijama. Ponekad možete blokirati ovu vrstu kolačića, ali ne dozvoljavaju to baš svi pretraživači.