Search Engine Optimization (SEO) is the process of optimizing a website to improve its visibility in search engine results such as Google. It involves using relevant keywords, creating useful content, optimizing website pages and images, improving technical elements, and making the website easier for both search engines and users to understand. The main purpose of SEO is to help a website appear for relevant searches made by its target audience.

Unlike paid advertising, SEO focuses on building organic visibility over time. A well-optimized website can attract relevant visitors, improve online discoverability, and provide a better user experience. By understanding what people search for and optimizing a website around those search needs, SEO helps businesses build a stronger and more sustainable online presence.