1. A large number of low-quality external links
In the process of site optimization, most people will think that the more external links, the better, it will also play a positive role in site weight and ranking. This is a basic and most common misunderstanding. This method is wrong from the perspective of the website itself or the search engine. Because today's search engines are becoming more and more intelligent, the initial explanation of the construction of the external chain is that the other website gives its own website a vote, once the website links are too flood, therefore, it is very likely that the search engine determines it as a mass link or a person's operation. This violates the search engine's explanation of external links. However, once the search engine determines such external links as mass links. The consequences are very serious. The Snapshot delay is light, and the snapshot delay is heavy.
For too many external links, the weights are usually relatively low. This will fundamentally affect the weight of the website, and make the search engine have doubts about the authority and rigor of the website, so that the keyword ranking is not too high.
II. The external chain subject and the subject category are seriously inconsistent
This concept has been mentioned for a long time. However, due to the complexity and difficulty in handling external links, this concept is often ignored. In fact, when a search engine crawls a webpage, it will automatically review the category of the article and the industry category of the target page of the external link, such as Category similarity, the search engine considers the site to vote for the target site. The obtained weights are also maximized. Of course, if the construction of the external chain needs to be done in the same industry, this operation is quite difficult, so we need to work hard in news articles. For example, publishing your own article to admin5 or chinaz, because the search engine does not emphasize the same industry in terms of the capture of the external links of news and information articles.
3. An external link website involves illegal content or a website that has been punished
This is not recognized by any search engine. However, after comparison and research by many websites, we find that the search engine does impose a joint penalty on all exported websites due to such external links. In particular, links exported from websites related to pornography are basically not spared. (For example, I sent a group of replies to the forum, and accidentally sent my website to a pornographic website. Then, the weight of my website is reduced) therefore, you must not use group-based software for immediate success when creating external links, because you cannot know which station your external links are sent, do not discard all previous efforts because of the temporary simplicity and convenience. To implement a rigorous seo tutorial r, you must have 100% control over your own external link analysis.