SEM stands for Search Engine Marketing. It is a digital marketing strategy that involves promoting a website through paid search listings, such as Google AdWords.

With SEM, businesses can create and place ads on search engine results pages (SERPs) in order to promote their products or services to users who are searching for specific keywords related to their business. When a user clicks on one of the ads, the business is charged a fee, which is usually based on the amount bid for the ad and the quality of the website being advertised.

SEM is a type of paid search marketing, which means that businesses have to pay for each click on their ads. This can be a cost-effective way to drive targeted traffic to a website, as businesses only pay when someone clicks on their ad.

SEM can be an effective way to reach potential customers at the moment they are searching for products or services that a business offers. By targeting specific keywords and carefully managing a campaign, businesses can use SEM to drive relevant traffic to their website and increase their online visibility.