Google’s John Mueller answered a question about important of links from the main page. John’s answered the question and shared how to signal which pages on a website are important.
Site Architecture, also known as Information Architecture, is a strategy for organizing web pages in a way that is intuitive for users and makes it easy for site visitors to find information.
There are two approaches to site architecture.
Flat Site Structure
A common approach is to create a navigational structure that makes it easy for search engines and users to find all or almost all published pages.
This approach becomes difficult for users when a site is large. It also creates what’s called a Flat Site structure.
A flat site structure is the situation where every web page in a website is within one to two clicks from the home page.
What happens is that every page has the same amount of importance and is easily reached by search engines. The downside for a search engine and the publisher is that every page contains a virtual site map of the entire site.
For search engines, this means that groups of related pages are difficult to understand as belonging to a particular topic. That makes it harder for search engines to understand what a page is about and difficult to rank individual web pages.
A flat navigational structure results in an unusable navigational structure. This means that site visitors will have a difficult time finding their content.
Taxonomical Site Structure