The advertiser can either decide to select a specific country or create a worldwide advertising campaign. Through Geo-targetisation he can filter advertising campaigns for a specific country and time zone. Geo-targeting is a method used to identify the location of website’s visitors in order to give them a location-based advertisement, delivering precise contents to specific visitors with different criteria. The purpose of Geo-targeting is to improve the cost-effectiveness of marketing programs. Thanks to this feature the final target audience of the advertising campaigns will be easily reached, optimizing advertiser's Return On Investment (ROI).