If you want your website to be visible to the right audience, you should focus on what is SEO in marketing. Search engine optimization is also called search engine marketing. It refers to the improvement of non-paid search results. Also known as organic listings, SEO means search engine optimization. SEO is about people more than search engines. While an experienced SEO professional may earn as much as eleven million INR per year, a fresher should expect to make two-seven-thousand INR.