About SEMrush: SEMrush is the leading competitive keyword and AdWords research tool on the market today. Other tools allow you to research your own data, what sets SEMrush apart is that they provide the means necessary to gain an in-depth look into how your competitors advertise in addition to what they are spending on Google and Bing. SEMrush has the ability to provide its members with information such as which ads competitors are running, what they spend on each ad, how much traffic they receive.