Analysis on the working principle and search result of search engine

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In fact, as long as we know the working principle of the search engine basically know how to get out of the search structure, why the same content some sites will be ranked in the front and some sites will be ranked in the back, through the search engine work principle of understanding, can further understand our SEO optimization! Here is a brief introduction to the working principle of the search engine!

One: establishing an information index

The search engine naturally relies on its own program to scan Web pages across the Internet, this scanning program is often known as spiders or search robots, their main job is to collect a variety of web pages, efforts to bring back a lot of information, put this information into the spider's Warehouse, is basically disorderly, This information is processed only when a user makes a search request. Then the processing of a good web page to provide customers, if the information is not processed, but simply presented to the customer, then the customer to find what they want will be very difficult, naturally there is no way to get users of the favor, And this process is to create a Web page indexing process, through the search engine on the quality of the Web page is qualified to enter the index, not qualified to kick out, the index is indexed by the search engine!

For example, the search engine set up an index called "Search Engine Optimization", and then the program will be in the spider's Warehouse and search engine optimization related to the page, and then put them under the search engine optimization tag, waiting for users to search for SEO keyword, The program will find useful information in this index for the user!

So how does a good index make good content available to users? Generally through three kinds of methods, one is the content index, here is the content we often say the keyword, title and description and link source text, and so on, the second is the structure of the index, here is mainly valuable information, such as the collection of Web links back and so on , the third is the index of the special index, if the focus of pictures, PDF files, etc. to provide search inquiries!

Second: Search engine information feedback work

For example, the vast number of users in the search box Baidu input piglet Price this keyword, the search engine will begin to start working at the speed of photons, correctly in millions of of a second of the time to provide you with information about the price of piglets, and the general control of Baidu's execution time in half a second, Of course, from the search to provide customers to see this period of time, visible efficiency is amazing!

So how does Baidu do this? If you are collecting the Web page through a temporary calculation and then feedback to the user time far more than so much, because we often search a keyword when there will be many pages, so the search engine in the content index and structure of the process will have a preliminary calculation, If the search engine carried out after the calculation in the past if there is too many of the keywords and piglet prices of the Web page is too much of the time will often appear typographical errors or other tips, now this problem has been solved, is the relevant information provided to the Web page to the current proprietary ranking procedures, Then please rank the program to the relevant information in accordance with the most relevant and unrelated to the order of the list, ranking procedures can be calculated from the index to arrange, greatly shorten the calculation time, so as to quickly provide a comprehensive ranking to the user!

The above is only the author of the search engine work principle of a simple introduction, of course, the program algorithm and the specific principle of work if not a few books is no way to speak clearly, but at least to the vast number of webmaster friends to bring basic understanding, which for our site optimization help is very big! This article source: http ://www.99g5.com/Weight Loss drug list original A5 First, reproduced please specify, thank you!