Youth 2: Must start learning SEO from the principle of search engine

Hello everybody, I am Jianjiang, last article "to Youth: to the Novice seo some words" since the publication, the recent land has continued to have many friends added my qq:793030022. After writing this article I found too much content, time limit can not write more detailed, write an article sometimes typing to play nearly two hours, but also please understand.

Recently, I have received some advice from friends, especially those who intend to contact the industry. One of the friends in Shanxi, asked me SEO has no academic requirements. I answered the SEO not high qualifications, as long as you have a stick and willing to learn the heart. The other side told me, he does not understand programming, not code, will be an obstacle? This friend reminds me of the first time I was against the SEO, that is, I do not understand, do not want to contact SEO, that they do not have an advantage in this respect. I saw the first page of the book told me: SEO does not need to be programmed, my eyes suddenly bright up. By the way, do SEO and Network marketing Division, basic HTML, div+css and JS to understand some.

This article, I would like to briefly say the principle of search engine, in fact, as an SEO, you must be familiar with the principles of search engines. As long as you are familiar with the principles, you can better understand and understand why you want to do so.

We SEO inside said Spider, is a search engine of a program, used to crawl and visit the page, Baidu Spider is: Baiduspider, Google called the Robot: Googlebot.

Spiders crawl through the links on the page, crawling from one page to another, through these links. Spiders crawl into breadth first and depth first. Theoretically, each method can make spiders crawl through all the pages, but our actual situation, time is not infinite, it is impossible to crawl through the Internet all the pages.

As an SEO personnel, if you want to own the site can be more spiders included, you must find ways to allow spiders to crawl your page. If you are not able to crawl all the pages, at least let spiders crawl your important pages. So, how the spider is to judge the importance of the page. There are probably a few factors in these areas:

Update: Spiders crawl Once the site, will be the data store this page, the next time crawling, if found this page or the same as last time. Indicates that this page is not updated, spiders will think that there is no need to crawl and crawl, anyway this page is the same content every time. If every time a spider comes to find updates, it will come more frequently.

Import Link: A page, to be known by spiders, must also have import links imported to this page. Spiders are crawling along the link, otherwise the spider can not know your page exists, also do not have to talk about crawling and included.

Do SEO are aware of a principle, that is, each page with the homepage of the click Distance is best 2-3 times click. The most common site is the highest weight of the home page, there is a principle is that a page away from the homepage of the closer, the weight of this page is higher, the probability of crawling by spiders is also greater. Here also reminds you, may wish to put some important page URL, present in the homepage.

Spiders crawl to the content that will be stored. Process, the copied content is detected and deleted. If your site weight is too low, spiders found a lot of reproduced content, spiders may not crawl your site. Because search engines do not like to repeat content, this will result in an increase in its ineffective work.

After crawling to the content, the search engine will do a series of processing. When we query the content, the search engine has done a series of calculations and then ranked according to these calculations. What will the spider do with it?

Spiders crawl to the content of the first will be a filter, choose to participate in the ranking of content-that is, visible text. In addition, Meta, alt, anchor text and other useful code that contains text information are extracted.

Participle, this is mainly for Baidu, a sentence in the words are linked together, search engines must find ways to distinguish which is a phrase. For example: "Small commodity wholesale", it may be broken down into "small" and "wholesale" two words. In response to this phenomenon, we can do is to the keyword bold or add h tags, such as: small commodities wholesale. So the bold or the H tag, there is also a role is to help the spider to judge that this is a phrase.

Remove "", "" "," get "and other words, remove some exclamations, remove some adverbs or prepositions.

Eliminate noise, copyright information, advertising, etc. that affect the content of the page theme.

The previous two steps have been slightly carried, here is worth mentioning is to go to the heavy step. The same article may be published in different places on different URLs. Search engines don't like these repetitive content. Many times the search engine wants to return only one article of the same story. Spiders will be able to identify repetitive content. This step is called "going heavy". And the search engine's "go Heavy" level has reached a more advanced point, definitely not some of us take for granted. He will choose the most representative keywords from the content of the page, perform various calculations and analysis. So some of the site to write false original, just change the paragraph order, a slight replacement of several words, is unable to avoid the identification of spiders. Some friends very innocent said, I update the article every day, why my station or not included. Or, why do I update the article every day, or be down right.

After indexing, link relationships are calculated, such as importing links and anchor text, and so on. Then the search engine will also deal with a number of special files, such as: PDF, Word, PPT, TXT and so on. I remember that there was a webmaster, is the use of Baidu Library anchor text, to do it. Baidu Library now seems to reduce the weight, but special file processing, search engines do not recognize video and pictures and flash, can not judge what these things mean. This is why the site does not add too much flash and video, but also why to add ALT tags to the picture. Because the spider is relying on the ALT tag this descriptive label to determine the content of the picture.

Then is ranked, ranking process, will be Chinese participle. Here I intend to give an example of the Title keyword choice, we choose the keyword, we should take into account the separation of a keyword can also be a group of new keywords, which is to use the principle of Baidu participle.

Search engine will match the best keyword according to the user's search. But so many files, the spider to the end of which to show the user to see it. First is the relevance, we can understand the page keyword density. In addition to the relevance of this page, it is necessary to consider the weight of the page. When the number of matches is too large, it is impossible and unnecessary for the spider to calculate all the pages, so it will select the most important page (the weight of the page) for relevance calculation.

Search engine After some adjustments, the results are present in front of everyone.

A friend asked me, I am not a computer professional graduate, I can also engage in this industry. Hehe, when Jiangfeng went to college, he was not a computer professional.

It is worth mentioning that there is also a author of the home of the clan contacted me, but also encouraged me to write well, Jiangfeng ashamed, on an article, just a feeling, did not share any dry goods. So also thinking, this article, can give novice friends to provide some what really useful content.

In fact, I have been contacted are the domestic SEO, that is, Baidu optimization. A few days ago with a friend of the exchange, let me realize the importance of some things, and then from the network to buy a professional book, is a few foreign great God written specifically for Google's optimization treasure. In writing this article, remember that there is a great book on the road, Jiangfeng still very happy.

My friend told me that he had downloaded the ebook from the book, but his eyes hurt. According to my personal experience, look at the type of technology, but also must buy books to see, PDFs and TXT is not convenient, e-books used to see the novel is similar. Believe came to A5 friend, part of the webmaster and some seoer, there are some people are novice, eager to learn knowledge here. But I still suggest you go to buy this aspect of the book to see, you spend this dozens of yuan of money, absolutely will value. I personally feel that the network to see those fragmented tutorials, really did not read the effect of reading a comparison system. Other people write posts, everyone's style and understanding are not the same. I saw a lot of confusion.

Article Source: http://www.now199.com, reproduced Please indicate the source, write a post is not easy.