What is a SERP?
A Search Engine Results Pages, or SERP, is the list of web pages that are shown to users when they search a specific word or phrase online using a search engine, like Google. There are two primary types of results that show up on any given SERP, Organic and Paid:
Organic results are the web page listings that are shown on the search engine results page as a result of the search engine's algorithm. This algorithm organizes web pages on the SERP based upon their relevance to the search query and a number of other factors.
Paid results are the web page listings that are shown on the search engine results page as a result of an advertiser paying for them to be there. Paid results are most often seen in the form of PPC ads, but can be shown on the SERP in a number of different ways.