i recommend you to have a look at
this page, there you will find more details about seo and online marketing.
I have summarized the whole thing briefly:
Online marketing and SEO (Search Engine Optimization) go hand in hand. SEO is an effective way to get your website noticed by potential customers, while online marketing is the process of using marketing tactics to reach your target audience and generate leads.The goal of SEO is to increase your website’s visibility in search engine results, so that when people search for keywords related to your business, your website will show up higher in the results. To achieve this, SEO involves optimizing your website’s content and code so that search engines can easily understand what your site is about and rank it higher in their results. This includes optimizing your website’s meta tags, titles, and descriptions, as well as creating content that is relevant to your business and that incorporates relevant keywords.In addition to SEO, online marketing involves a variety of tactics to reach your target audience and generate leads. This can include social media marketing, content marketing, email marketing, and more. By implementing these tactics, you can reach a larger audience, engage them with your business, and drive more leads and sales.When used together, SEO and online marketing can be a powerful combination for driving more website traffic and generating more leads. By optimizing your website for search engines and using digital marketing tactics to reach your target audience, you can increase your website’s visibility and increase your chances of success.