SERP
SERP stands for Search Engine Results Page. This means the page that a person gets after they Google something. It includes 10 organic listings (the non-ad web links) but can also include advertisements, maps, news, rich snippets, videos, and the knowledge panel. The SERP has evolved a lot over the years and looks slightly different for different searches and in different locations.
For example, if you search a celebrity like “Brad Pitt,” y0u’ll see the knowledge panel on the right-hand side that gives you some images and overview information, but you are unlikely to see any advertisements. However, if you search “digital marketing companies” you will see many advertisements and 3 names of nearby marketing companies in the maps view but no knowledge panel. Using advertisements puts you at the top of this above the organic listings. Further, using extensions will cause your advertisement to take up more space on the SERP and improve the likelihood that it will be clicked.