What are SERPS?  - Literally SERPS stands for Search Engine Results Pages

Search engine results pages are web pages served to users when they search for something online
using a search engine, such as Google. The user enters their search query (often using specific
terms and phrases known as keywords), upon which the search engine presents them with a SERP.

Every SERP is unique, even for search queries performed on the same search engine using the same
keywords or search queries. This is because virtually all search engines customize the experience
for their users by presenting results based on a wide range of factors beyond their search terms,
such as the user’s physical location, browsing history, and social settings. Two SERPs may appear
identical, and contain many of the same results, but will often feature subtle differences.

The appearance of search engine results pages is constantly in flux due to experiments conducted
by Google, Bing, and other search engine providers to offer their users a more intuitive, responsive
experience. This, combined with emerging and rapidly developing technologies in the search space,
mean that the SERPs of today differ greatly in appearance from their older predecessors.