The distinction between flat structure and tree structure of website structure

Website construction optimization, the website structure is the site optimization success or failure point, the website structure generally divides into the physical structure and the logical structure.
Physical structure is the actual directory of our site, or the actual physical address of the file. Physical structure is generally divided into two kinds, one is flat, one is tree type.
The physical structure of the site can be divided into flat, and tree-shaped structure
Flat structure: All pages are in the root of the site, forming a flat physical structure. Its advantages are short structure, spider efficiency, url short, is conducive to search engine inclusion and rankings. But the disadvantage is that the URL semantics is not obvious, with the increase in data volume will make the site becomes difficult to organize, the chain is not good to do, weight transmission is difficult to concentrate. Therefore, the flat structure is suitable for simple vertical small and medium-sized websites.
Tree structure: There are many directories or columns under the site, and the contents or columns of the page are placed in the catalogue or column. The structure is clear, the URL semantics is clear, the recognition degree is high, the Search engine processing internal link weight value transmission will be easier, later management is easier. But the depth of the tree level will lead to the inclusion of slow, and too dense network structure will lead to site structure confusion, link complex, easy to lead to the decline of spider efficiency, so, do a good job of tree structure column organization and link optimization is essential. This structure is suitable for Web sites with multiple content categories and large content volumes.
The flat type is where all the pages are placed in the root directory, just like this:


Http://xxx/page1.html
Http://xxx/page2.html
Http://xxx/page3.html
.......
Tree structure is the root directory also has several categories of folders, pages placed in these categories folder, of course, the category folder can also have sub-category folders. The page is stored in a location like this:


Http://xxx/dir1/page1.html
Http://xxx/dir2/page1.html
Http://xxx/di3/page2.html
.......
A logical structure is a structure diagram formed by organizing various pages through the internal links of the website.
After research, the general good logical structure is with the above mentioned physical structure to match, the site according to the physical structure to organize channels and columns, and then through a good site navigation and the chain will be different columns and topics and pages in series, woven into a tree-like network, such as umbrella, hierarchical, to have regularity, uniform density, width and moderate , the depth cannot be too deep.
For search engines, it is important that the logical structure of the site, not the physical structure of the site. The logical structure of the website, said simple point, is to be able to find this page from a few pages, for example, the first level of the home is a link to the details page, then this detail page belongs to the second layer. At the point of view of SEO, the lower the number of logical structure layers, the greater the chance that the page will be crawled by the search engine.
Whether it is a tree-like physical structure or a flat physical structure of the site, you can use the internal chain to the fixed physical structure into a flexible network logic structure, in the planning of the logical structure of the site need to pay attention to the following points:
1, clear structure, clear navigation, in line with user habits
Regardless of the type of physical structure of the site, the final logical structure of the user must be logically clear, in line with the user's habits, for example, we will be on the main page to arrange a top level navigation bar, which is user habits.
2, prioritize, according to the level of division
The link on the homepage of the site, whether it is a column page or a content page, is equivalent to a level two page for search engines. We do not need to focus on the content of the very deep level, and the non-trivial content on the home page. Therefore, we have to understand the primary and secondary relations and hierarchical relationship, the site navigation is generally from the home page to the inner layers of progressive, the more shallow, the more new content, the more important.
3, internal chain positioning, internal link uniqueness
Internal link in the structure optimization is up to a very important problem, not tightly favorable for the user's experience, but also to provide search engine guidance portal! And in our SEO optimizer, more to improve the weight of a page within the entire site, outside the link we know is voting, then the internal link is also the voting method.

The distinction between flat structure and tree structure of website structure