Visual signifiers and patterns help guide users and create an enjoyable and intuitive user experience.
Creating visual signifiers or ‘templates’ for different page levels - 1st, 2nd, 3rd and 4th level pages, lets users know where they are on the site based on the page design.
Levels can differ depending on how many pages you have and if it’s a big or small site.
The last page in a structure should always be an article page for the users to know they are on the deepest level of the site. The section and sub-section pages primarily work as entries for the other pages down the hierarchy.
On smaller sites without a 3rd and/or 4th levels it´s section and sub section pages can be built as article pages. If you have a 4th level page, you must remember to make the 3rd level page as a section page, with teasers linking to your 4th level pages.