An SEO friendly website structure is also one that makes it easier for visitors to navigate your website. It helps with the customer experience and the usability of the website. If a visitor can use your site well, they are more likely to become repeat visitors and perhaps customers. Therefore, the first place to start is to think about the most important content for your customers.  Having a good structure helps Google "understand" your website, making it clear what is your most important content and prevents content from competing with each other. One example is the use of child pages.  Child Pages By using child pages, you can help organise your content into groups. For example, by making my articles child pages of the parent article index page, we help create a structure that is both helpful for SEO and visitors, for example, www.buildyourwebsite.co.nz/articles/why-pay-for-web-design/. The URL includes /articles/; this lets Google know this is an informational webpage.   Not too many clicks All pages on your website should be reachable within 2-3 clicks. Therefore the ideal site structure should be like a pyramid. Use the internal link structure, i.e. linking from one page to another, to enable users to move through your content. Cornerstone articles should have many links going back to them, ideally in the same category.  Cornerstone articles are usually more detailed, thorough articles that cover what is core to your business. So, for example, web design blog posts link back to the main web design page. This also lets Google know what related content as well as what page is most important is. Yoast's plugin has a link counter which you can use to help. Main Navigation Think carefully about what will be on the main navigation menu. Be customer-focused in your selection. If you are organised a great deal of content, it can be helpful to use post-it notes and move things around until you are happy. Remember also that people can only hold in their short-term memory 3-5 items. So if you have a large menu, group items together.  Your Blog Use categories for your blog and have similar amounts of posts in each one. When a category on your blog becomes too large, divide it into two categories. You can also use tags to group posts together across categories. Remember that a new tag creates a new page, so don't go overboard on creating tags.  Technical Issues Always do redirects when you make changes to your site structure. Check that the Yoast sitemap is generated and you have submitted it to the Google Search Console.