SEO How to do effective outside the chain

Domestic SEO people may often hear such a sentence "You can not understand how to change meta, but you must know how to do the chain." "Visible outside the chain as a means of SEO optimization by many SEO practitioners pushed to a very high altitude."

In fact, there is a certain reason for this view, because SEO all work is in order to let the search engine to its website page produces friendly, but the page own optimization to the search engine to have a standard, this standard is like an extreme value, no matter how you optimize all is in infinity close to this extreme value, but can not exceed , however, the outer chain as an external factor is an infinite value, so the chain will be perceived as a quick, stable, and not easy to make mistakes in the simplest and easiest to measure an optimization method. But if you really want to talk about how to effectively optimize the external chain, can you say you really understand? How to understand, how to effectively carry out the optimization of the chain, maybe we still want to from the search engine operating modules and principles of analysis, modeling.

If the SEO job is to serve the search engine, then the optimization of the external chain is a service search engine spider module, spider if through a lot of links crawl to your site, then he may be judged that you may be one of these pages of information node, the source of information, So that gives you a considerable weight. This is the outside of the chain for search engines and also for the meaning of spider.

Let's take a look at Spider's work, spider as a server from an Internet Information node to start crawling Web information back to the database. The first website of the Internet takes the comprehensive information as the main, so the spider work is relatively simple, the whole search engine's sorting mechanism is also relatively simple. But with the development of the Internet, the information of the Internet has been broken down, and Spider's work has become complicated. Search engine in order to be able to quickly display the search results page must be the same information subdivision of the data, spider from the beginning of a single crawl and added a function of information classification, but when the classification of information up to tens of millions of this level of information capture and classification of the process becomes lengthy and slow. The most fundamental solution is to define the classification for the server before the spider crawl, that is, a particular spider server captures only a few categories of information, so the classification becomes simple and fast. How does spider define its own crawl path before crawling? We can build a working model like this.

This process is easy to understand, is the most important to us, but also the most need to understand a link that is path filtering. Spider is how to filter, the logic of a model to consider the problem is that when a model can not be tested, first of all, to determine the model of more than two self-evident axioms, and then by the two axioms of logical derivation. We have to determine the axiom first: to ensure the efficiency of the overall operation. Second: To ensure that the crawl content and classification matching.

In this way, we can conceive of a working principle: the path of the spider crawl through the analysis (the analysis process is similar to the router looking for the shortest path between the nodes). Analysis to be drawn will be a link consisting of a crawl path, the path of the page to be crawled to the information is the same classification of information, and then calculate the path length to obtain the optimal path, and finally the optimal path to filter out after the submission to the set crawl spider server, Then the spider server can follow this path for fast crawl and classification, and the next time the pan-crawl server update the optimal path is to follow this path to crawl.

For example, it is like this: in an orchard evenly and disperse red apple and green apple, now growers need to pick apples and according to red Apple and green apple classified trafficking. At first, the growers picked all the apples in order and then sorted them out. Later, in order to improve efficiency, growers began to draw the fruit trees on paper, all the green apple trees with the line together, the Red apple tree line together, and then divided into two groups of people in accordance with two different routes to pick, after the end of the direct package of trafficking.

So what kind of outside chain strategy can we make when we understand this filtering mechanism?

• Links, outside the chain of the page and its own site content related
• The page where the chain is located exports links to most of the pages also need to be related to their own site
• Avoid the exchange of websites with a large number of links (like a room if there is only one exit, you can quickly determine how to go out, but a room with hundreds of exits, you know how these exports to where it will take a long time, greatly reduce spider efficiency)
• Avoid and link to a large number of external chain sites that are not related to their website
• Do not let your site an export link is not, really no chain also prefer to link to a high weight of the relevant site than do not do export links more by Spider favorite

These may be the most basic of some of the deduced conclusions. According to this filtering rule, we can even make a spider loop to crawl the path provided to the search engine, this cycle path of expression, is now more and more adopted by the link theory model, Will be outside the chain to form a content of the same ring so that spider constantly crawl path on all sites on the Ascension path on the weight of the site.

Of course, through such a conclusion Model a creative SEO can also create a variety of optimization methods, here we need to slowly think about it.

If you have the patience to read all the above articles, then think again, now they are doing outside the chain will be some blind and inefficient it ~ oneself before really know how to effectively do outside the chain it? Or only know how to quickly do a lot of outside the chain ~

Hope that the humble text to you useful, humble opinion of the discussion ~

Source: Reader submission, original link.