What is search engine marketing?

1 min read Last updated: 18 Sep 2026

Search engine marketing (SEM) covers everything companies do to increase their visibility in search engines such as Google. That includes both paid ads in the results and strategies for ranking better organically.

The aim is to be visible at exactly the moment someone is actively looking for a product, a service or a solution. That way companies attract visitors who already have a concrete interest.

What belongs to search engine marketing?

In digital marketing the term is usually used as an umbrella for two central strategies:

  • search engine optimisation (SEO), the work of ranking better in the organic results
  • search engine advertising (SEA), paid ads run through platforms such as Google Ads
  • keyword research to identify the searches that matter
  • analysing and improving campaigns to win more clicks and conversions

Where SEO aims at better rankings over the long term, SEA delivers immediate visibility through paid advertising.

Why search engine marketing matters

Most buying decisions today begin with a search. Companies that are visible there reach potential customers at the precise moment they need information.

Search engine marketing done well therefore combines the durable visibility of SEO with the short-term results of advertising.