Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall
This topic can be very far from the beginning of the Internet. In the late 80, when the US military invented the hypertext protocol, an island of information about a single computer was fully connected. The original access to another computer from a computer is a very complex, only professionals can complete the arduous work, now only need to easily click on the information can be interconnected. This is the origin of the rapid development of the network, then developed from the LAN to the Internet, the formal realization of the full network connectivity.
However, the information is more and more developed, in the information network, the Netizen wants to inquire the information that needs to retrieve more and more difficult, therefore appeared the classification catalogue, the search engine and so on the tool, facilitates the netizen quickly to find own target information. Among them, the search engine is what we call today Baidu, Google and so on. These tools have become the main portal of the network, basically the most important dependence of netizens. In China even formed a "problem, please Baidu."
Search engine on the one hand using the crawler (spider, crawler, etc.) through the network connection, and constantly crawl the network data information, on the one hand through the huge service program to process the data, and then through the complex algorithm to establish the data retrieval directory. In this way, when the user in the Input keyword search related information, can quickly pull out the relevant data display.
To show there must be a sequence, that is, ranked successively, that must have a set of evaluation mechanism, the mechanism of all crawled page data scoring, and we were as young as the exam, divided into high page before the row, divided into lower pages. This is the search engine's core algorithm, the algorithm is very complex, according to Google's external release factors, there are more than 200 major factors, can be subdivided into millions of variables. Although Baidu and Google's algorithm there are some differences, but also datong small singular.
The complexity and confidentiality of the algorithm, the decision we are impossible to know, but the thousand change, not the fundamental, its basic factors can be groped out, so the birth of the SEO technology, with the search engine entrance of the importance of more and more high, there has been SEO this industry, a large number of seoer practitioners. The wisdom of netizens is infinite, after a lot of research and practice, seoer summed up some key factors of search engine rankings.
I. Domain and server
Domain name registration time, whether it has been punished, domain name and site-related topics, domain name length, whether the domain name contains keywords, server response speed, server stability, etc. will affect the site rankings.
II. website Structure
Whether the site will be static URL, url design specification, URL level path is flat, site link structure and physical structure is reasonable, whether to adopt a tree structure, whether there is no dead link, the site map is compiled, error page processing optimization, whether the site is a large number of Flash and JS links, Whether the use of the search engine is very unfriendly frame structure, site navigation is clear and reasonable, whether the link in the station to optimize and so on.
Third, the website page
The website meta tags whether compose, compose whether reasonable, contain the key word not, the length is suitable; H1 tags use, alt attribute text use, the keyword reasonable layout allocation, the code is sufficiently refined, whether conforms to the authentication of the wide-field, anchor text bold and internal link layout, content is regularly updated and other factors.
Iv. External Links
The number and quality of external links, whether the relevance, whether the regular increase, whether the hyperlink, whether one-way links, anchor text links and so on. Need to explain, SEO is the technology, strategy, execution, resources, comprehensive work, need to understand the relevant rules and practice, more need to compete and expected to do enough analysis, but also need long-term adherence.
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