An article allows you to understand the principle of Baidu search engine -grabbing the warehouse

Many people only know one of the search engine principles. I do not know the other. With the development of the Internet era, more and more algorithms are made public, and more and more people are curious about the search engine algorithm. Today, I will summarize today. This article uses the simplest and straightforward language to explain the principle of search engines. The content of this chapter is divided into grasping library building, search sorting, external voting, and results display.

Grabbing

What I have to say is "spider", what is a spider? Spider's English is Spider. It is a procedure for data capture. It is responsible for the collection, preservation and update of Internet information. The algorithm traverses the URL link. In addition to the update and deletion of the URL, it also carries the function of maintaining the URL library and the page library. Generally, the comprehensive indicators of spiders can be clearly clear through the Baidu resource platform's capture frequency. See.

Theoretically, the more frequent the frequency of grasping, it means that the more our pages are analyzed by Baidu spiders, the increase will be increased. Therefore, in daily work, the most important job we need to do is to improve the frequency of capture. , And the principles of capture frequency are mainly the following 4:

1. Website update frequency

The more content updates the website, the higher the frequency of grasping. The site that updates 1,000 articles a day will definitely be higher than that of 10 articles a day.

2. Website update quality

Although we can produce a large amount of content every day, if the content we update depends on collection and patchwork, then spiders will discard these low -quality garbage URLs after analyzing URLs, so while ensuring the number, we must first increase the content of the content. quality.

3. Stability

If our server often cannot open or load too slowly, then the spider's access to our site may have abnormalities, so at this time we need to maintain the stability of the server, and through the grab diagnosis or diagnosis of the webmaster resource platform, or The detailed situation of the spider can be clearly seen by the abnormality. We can analyze the reasons why the instability can be analyzed through these.

4. Site rating

Site rating is not a third -party weight. The weight display of the third -party platform is after the third -party platform simulates the spider crawling site, and the determination of the self -defined thesaurus in its own database is only a reference for the industry, not a real site, not a real site Rating, and Baidu's rating will be determined based on factors such as website scale and content quality of the site.

If we want to improve the frequency of capture, we analyze this conclusion after 4 o'clock. While ensuring the quality of the content, we increase the number of website updates and ensure the stability of the server. We update the number of articles on a large scale. The quality of the article cannot be guaranteed. After being recognized by Baidu, we will also be lowered again.

In the entire process of grabbing the library, the Baidu algorithm adopted the principle of priority to build an important library. After grasping URL analysis, some high -quality content will be placed in high -quality libraries. The content of the content is low to the library, and the biggest affecting the traffic is the content of the high -quality library. We give an example. For example, we have updated 10 news. Only one article is the high -quality content of its original update. 4 are collected online online. Five articles are collected. Therefore, 1 can enter the high -quality library of traffic, 4 articles enter the ordinary library, and 5 articles enter the low -quality library. Because the proportion of low -quality libraries is higher than the overall number, our site rating rating rated It will not be too high and the traffic is not too much.

In the principles of Baidu's high -quality library, the timeliness and high -quality content become the primary principles. Usually, our content can not be original, but we need to deeply process our content and make it become high -quality content, such as others’s content of others, such as others’s’s’s’s’s. In an article, "How to Fry Western Tomatoes", and we can deeply deal with the content, not only the steps of fried tomatoes in the article, but also the criteria for choosing ingredients, which is also high -value content.

Correspondingly, during the spider capture process, the following webpage cannot enter the index library:

1. There are a lot of repetitive content on the Internet.

2. The main content is short, there is no text or too little text.

3. The main content is not obvious, all of which are the URL collection.

4. Cheating pages, such as malicious jumps, pop -up advertisements, etc.

Summarize the process of grasping the library: Baidu spider to grasp the URL grabbing based on the comprehensive strategies such as the in -depth crawling strategy, the width crawling strategy, the external chain strategy, and the PR strategy. Take the strategy to grab the library to build the library. If the content of this page has a large number of duplicate, or the content of the content is short, the cheating page does not meet the enrollment standards, Baidu does not build the library. If the link content is not the above content, it will be The construction of the library is performed, and these pages may enter the high -quality library, ordinary library and low -quality library, which depends entirely on the quality of the content. At the same time, the spider will analyze the update frequency, the quality of the content, and the quality of the content, and the quality of the content in the process of grabbing links. The inner site rating is adjusted through these comprehensive dimensions.

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