Orphan pages
Orphan pages are pages on your website that don’t have any internal links pointing to them from other pages. This makes it hard for both visitors and search engines to find these pages. For example, if you have a blog post about "SEO tips" but no links to it from your homepage or other posts, it becomes an orphan page.
Internal linking is important because it helps connect different pages on your site. This way, you guide visitors and search engines to find and explore your content easily. If you have orphan pages, they may not get any traffic. To fix this, you should add internal links from other pages to these orphan pages.