Real Time Bidding (RTB) is the advertising strategy where real time bids are placed on live auctions at the time of loading of the website. Advertisers compete on every impression while the website loads RTB is much better than static bidding because real time auctions ensure that the visitor most certainly looks at the ads. It also helps the advertiser to reach a broader targeted audience. Advertisers can increase the visibility of their ads through RTB auctions. RTB is now used in different advertising domains such as premium inventories, native advertising and remnant inventories.