Search engine optimization (SEO) is the practice of orienting your website to rank higher on a search engine results page (SERP) so that you receive more traffic. The aim is typically to rank on the first page of Google results for search terms that mean the most to your target audience.Search engine optimization is the process of improving the quality and quantity of website traffic to a website or a web page from search engines. SEO targets unpaid traffic rather than direct traffic or paid traffic.