But if youve spent much time researching your options with digital marketing, youve probably heard that before. Once youve accepted this, though, the next logical question is how to do search engine optimization. Thats why on this page, well explain exactly what makes SEO so important, as well as a few search engine optimization techniques and search engine optimization tools you can use to increase your online visibility. An Introduction to SEO. Search engine optimization, or SEO, is a strategy for improving your sites rankings in search engine results. It involves identifying which keywords and phrases your target audience uses when looking for products or services like yours, then working towards ranking well for those searches. Of course, this is a simplified explanation and you can check out our resource on what is SEO for a more in-depth look at search engine optimization. 8 Reasons Why Your Website Needs SEO Optimization. Today, SEO is an essential part of any effective marketing strategy. But to fully illustrate its importance, lets go over a few of the reasons you should be optimizing your site. It can help you build your brand.