Keyword research is the process of identifying relevant and popular search terms that people use when looking for information on a particular topic or product. It involves using various tools and techniques to find out which keywords are commonly used by people when searching for information online. The purpose of keyword research is to optimize website content for search engines, so that it ranks higher in search engine results pages (SERPs) and attracts more targeted traffic. Effective keyword research can help businesses and website owners understand their target audience better and create content that is more relevant and useful to them.