First, let’s get down to SEO definition. SEO or Search Engine Optimization can be referred to as “The process of optimizing your pages to give them high-ranking placement in the search results page of a search engine (SERP) - including Google, Bing, Yahoo and other search engines”. (Src: Joomla Glossary).
2. How to proceed
To use Inbuilt Joomla SEO settings feature, in your Joomla admin back-end, navigate through System >> Global Configuration.