To optimize your content for both SEO and content marketing, you need to understand your audience's needs, goals, and intent, and create content that answers their questions, solves their problems, and provides value. It is also important to conduct keyword research and use tools like Google Trends, Keyword Planner, or SEMrush to find the most relevant and popular keywords and topics for your content. When writing your content, use keywords naturally and strategically in the title, headings, body, meta tags, and URL. Additionally, ensure that your content is clear, concise, engaging, and easy to read by using headings, subheadings, bullet points, images, and videos. Linking to other relevant and authoritative content can provide more information for your audience and search engines. Lastly, optimize the speed of your content's loading time on different devices as well as its mobile-friendliness and security. Additionally, update and refresh your content regularly to keep it fresh.