BidMizer provides Online Travel Agencies (OTAs) around the globe with friendly software as a service over the cloud. The service maximizes the OTAs’ profits when advertising in Metasearch engines (price comparison websites), like Trivago, Google Hotel Ads, Kayak and many more, by calculating optimal bid for cost per click (CPC bid) for every advertised hotel. BidMizer uses analytical data provided by the Metasearch engine in order to accurately predict future measures (using Machine-learning technology). Based on the OTA's budget and the predictions, BidMizer runs an optimization algorithm to calculate optimal (profit-maximizing) bids for every hotel advertised by the OTA.