Yes! You need to continuously add new content and update your existing content.
Please keep in mind that we are not suggesting that you change the optimization that you originally did for each page.
Instead, you continuously add additional pages with additional content that you have optimized.
This not only gives visitors more content, thus encouraging them to come back to your website, but it encourages the search engines to rank you higher as they see your website as a useful resource for visitors.
You may have heard the saying that content is king on the Internet. Well, this has never been more true in SEO.