"Bread crumbs" (Breadcrumbs) website architecture

In fairy Tales "Hanzel and Grace", when Hanzel and Gray passed through the forest, they sprinkled crumbs along the way, allowing the crumbs to help them find their home.
　
Although this is only a child's fairy tale, but it contains a variety of meanings. In fact, web designers can also be inspired: in the depth of the structure of the site should use this "bread crumbs" structure, the way the footprints of the user to walk through the path, or to the level of progressive rendering of the Web page in the entire site structure in place, so as to provide users with clear and distinct site navigation.
The "breadcrumbs" architecture gives users a clear, hierarchical relationship between this page and the page they visit. One of the most obvious features of this web site structure is the return navigation feature.
Return navigation not only improves the usability of the website, but also enhances the friendliness of the website to the search engine. The usability of the website is a very important factor for all the websites. Unfortunately, not all web designers are able to understand this. And once this can not be implemented in the website design and embodiment, then the overall performance of the site can not help but people worry. Just imagine, whether the visitor is through a search engine or some other link into a shopping page, and this page does not provide what we call "breadcrumbs" return navigation, when users want to go back to the previous page to find other similar products, only through the browser in the back function of the original road return.
But if the "breadcrumbs" return to the Navigator, the situation would be vastly different. For example, the above shopping page, when the user found that something is not satisfactory, he can quickly go back to the upper level or directly into the product catalog to find other similar pages or products.
This is no exception for search engines. Provides a good return navigation connection to help search engines better retrieve the entire site. In addition, the link text in the "breadcrumbs" navigation connection can also enhance the search engine rankings of the linked pages.
A successful website is to give control of the site to the users of the website, rather than hold on to it, attempting to control the user's freedom of browsing. Otherwise, the site obviously loses its friendliness to the user. I have seen such a site, only the home page has the product's internal pages link, so no matter enter which internal page, if want to enter another page must first return to the homepage. How can a site like this expect a user to buy his or her product or become a potential customer?
The navigation structure of the website is extremely important. You should ensure that users can navigate through the primary site to each of the main pages of the site, while the secondary pages can be accessed by accessing these main pages and providing the ability to return to the top page. But there is no need to put every link on each page of the site. These rules are simple, but not only for the actual visitors to the site, but also for the search engine to provide a better experience.
In addition, good site navigation should also be user "Transparent", that is, users can come and go freely in the site, but no need to go through a fixed sequence of layers. In other words, you can use parallel or interactive ways to assist in the linear process of Web site navigation.