Page Depth
Page depth refers to how many layers down a page exists in your site structure, i.e. how many clicks away from your homepage it is. It’s best to keep your site architecture as shallow as possible while still maintaining an intuitive hierarchy. Sometimes a multi-layered site is inevitable; in that case, you’ll want to prioritize a well-organized site over shallowness.
Regardless of how many layers in your site structure, keep important pages — like your product and contact pages — no more than three clicks deep. A structure that buries your product page so deep in your site that users and bots need to play detective to find them are less accessible and provide a poor experience
For example, a website URL like this that guides your target audience to your product page is an example of a poorly planned site structure: www.yourwebsite.com/products-features/features-by-industry/airlines-case-studies/airlines-products.
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