Google’s Gary Illyes answered a question about site structure, explaining why a hierarchical site structure is good for SEO and when it’s okay to use a flat site structure.
Gary offers a good reason why a hierarchical site structure is a good choice and why the flat site structure is okay for simple websites.
Flat Site Structure
A flat site structure is when every page has a link from the home page which results in the entire site being just one click away from the home page.
It’s called a flat structure because if the linking structure were visualized it would be flat, with everything all linked together on one level beneath the home page.
The flat site structure came about during a time when people used to get links from web directories and also from reciprocal linking (where two sites agree to link to each other).
A flat structure site structure was …