Search engine marketing, or SEM, is designed to increase a website's visibility in search engine results pages (SERPs). Search engines provide sponsored results and organic (non-sponsored) results based on a web searcher's query.:117 Search engines often employ visual cues to differentiate sponsored results from organic results. Search engine marketing includes all of an advertiser's actions to make a website's listing more prominent for topical keywords.
A key benefit of using online channels for marketing a business or product is the ability to measure the impact of any given channel, as well as how visitors acquired through different channels interact with a website or landing page experience. Of the visitors that convert into paying customers, further analysis can be done to determine which channels are most effective at acquiring valuable customers.