The above content is referenced from the Component Tutorials landing page.
When using the Reference component it is important to know where the original version of your content is located. This will make it easier to update content, reference on other pages, and prevent accidental component deletion.
If your department has several references that are used often, we recommend creating a hidden page where all of your referenced content can live. This way when you need to update or reference content, you only have to go to a single page.
Broken references cause layout problems with the page footer. A partial version of the footer may appear on the side of the page or the footer may no longer extend to the full width of your browser window. If you notice either of these things occurring to the footer while on one of your pages, then your page contains at least one broken reference that needs to be updated or deleted.
Broken references may occur for any number of reasons: