To improve SEO and eliminate duplicate content, remove all class and CSS styles from your HTML. This ensures that search engines index unique content and prevents issues related to duplicate metadata. Focus on creating unique, high-quality content that is both informative and engaging for your target audience. Use appropriate header tags (H1-H6) for semantic structure. Also, make sure your site has a clear sitemap and internal linking to help search engines crawl and understand your content. Furthermore, ensure your content is properly structured and optimized for readability, this includes appropriate use of paragraphs, headings, lists, and images. Finally, regularly update your content with fresh and relevant information. By following these steps you can create a better SEO experience and get ahead of your competitors.