If you plan to insert the page you are importing into another page, you need to take measures to ensure that links on the imported page remain intact once the page is inserted into the other page.
Since header information is lost when one page is inserted into another, links usually break on imported pages.
The Imported Page builder solves this problem by automatically converting all relative URLs to absolute URLs. For imported pages that you expect to insert into other pages, enable the Make URLs Absolute
option. When this check box is enabled, page URLs remain functional even when the imported page is inserted into another page.
Parent topic: Imported Page builder