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In view of the search engine work principle study, after understood the webpage structure concept, should further inquire why carries on the webpage structure, the webpage structure goal is what.
I am not an academic school, I am engaged in SEO site optimization staff, here to share their learning process, I have always believed that the source of things to explore, will make specific SEO site optimization work become more controllable, more easily applied. Whether in the Beijing website optimization, or Shanghai website optimization, or Guangzhou website optimization, and so on, the truth is the same. The last sentence is nonsense to the beginner. Let's get down to business.
Why do Web pages structured?
1) Web page structure is the basis of search engine recognition of web retrieval value.
Web page structure can be understood as a search engine system more in-depth work of a preliminary screening, or as an assembly line on the process, for efficiency, resource occupancy considerations, put this process to the front.
2 Web page structure makes the search engine save a lot of storage.
Web page structure is the search engine to crawl to the raw data to lighten the process. The value of the page and can represent the page properties of the part left, the other things completely removed. Naturally, it saves a lot of space.
Second, what is the goal of Web page structure?
In fact, as SEO site optimization personnel Most want to know is that the Web page structured to extract the attributes of the page to represent the page. So the title of this article is also set for "Web page structured goal is to extract the 5 basic attributes of the Web page." The following 5 basic properties, these 5 properties are extremely important for retrieval.
(1) Title: The title here refers specifically to the middle part of the HTML identity language, which expresses the basic meaning of the Web page. and anchor text is the same, are used to describe the content of the Web page attributes; Unlike the anchor text, this title is written by the creator of the Web page.
(2) Anchor text: is also one of the attributes that describes the content of the Web page. For example, the home page of Peking University may be pointed to by anchor in other pages, and its anchor text (such as "Peking University official website") is a description of the homepage of Peking University website. Especially for some untitled pages, anchor text is a useful complement.
(3) Body title (content title): In an HTML Web page, the title of the page is identified by the label. The actual situation is due to the negligence of the author of the Web page, or other reasons, the text in the label can not represent the main content of the page, so you need to extract the appropriate text in the body as the body title.
(4) The text (content): Anchor text, title and body headings are a brief description of the Web page, and the text is a page of the main content, it fully describes the main content of the Web page, generally appear in the Div, table and p and other HTML tags.
(5) Forward Link: A forward link is a link written by a Web page producer that directs users to surf the web, and the text of the links is also the anchor text for other pages. (Source: www.zhangxundf.cn)