What is SEO & How to Use It! Search engine optimization, or SEO, is a powerful tool for businesses and organizations looking to increase their visibility online. SEO is the process of optimizing web pages and content so they appear higher in the search engine results pages (SERPs). By using Search Engine Optimization, businesses can improve their search engine rankings and attract more visitors to their websites. In this article, we’ll discuss what SEO is, how to unlock its power, and how to reap its benefits.