Discussion on the harm of black chain and its prevention method

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Speaking of black chain, I believe that the promotion of people have heard, it is the most commonly used in SEO black hat technique. In short, the black chain is through informal channels to get other sites of the reverse link, the main object is some Web site procedures, and has a certain weight of the site. Although the black chain to quickly improve the rankings of the site, because of this, so that the black chain of advertising everywhere, but also let a lot of new stations quickly ranked a shortcut, but in recent years, the black chain has become the search engine anti-spam group focus on the target, so the purchase of black chain is actually a way to harm their own. Let's say how it hurts:

It harms:

From the economic point of view: The general links are paid links, or money, or link exchange, or human exchange; and the black chain to let themselves under the knowledge to put down the link, this is tantamount to help others linked free of charge;

From a security perspective: in fact, the ultimate beneficiary of the black chain is hanging black chain of hackers, the general black chain price or not cheap, and this group of hackers in addition to the black chain, may do some hanging horse, steal information and other extras, which makes the site security is threatened;

From the promotion point of view: If a page exists too many links, will directly lead to the site's SEO, it is linked to the black chain of the site often long after the snapshot update slow, ranking decline and so on.

It harms oneself:

The higher the rise, the worse, although the black chain concealment is very strong, but will eventually be found to the webmaster, if their own large number of black chain is deleted, will give Baidu Spider think you have cheating, directly put your site k off, then your site equals waste station.

Anti-Black chain method:

Although I am not a site security experts, but also in this regard have consulted some technical webmaster, they have to prevent the black chain is linked to the issue of a point, from the source to prevent. This source is the site's vulnerabilities, hackers how to hang black chain, and not from loopholes as a breakthrough, so the key is to repair the site's security vulnerabilities.

Generally take some online free web site security scanning tools can be, such as Iiscan, that is, often said "billion platform", but need to register to use. There are needles for some of the heavy stations or commercial nature can build their own security team, or purchase software, such as Jsky. These tools can find the site's vulnerabilities, to find out how to fix the bug can be, remember, before the repair to back up the site first.

Of course, although the repair of loopholes can prevent hackers, but so many loopholes, how can be fully made up, so the key is to check the code to see what unfamiliar links, delete, you can also through Webmaster tools to find out some dead chain to delete.

In fact, with the development of search engines, the black chain should withdraw from the stage of history, after all, its role is less and more side effects. And for some want to buy black chain webmaster, or do stand, after all, white hat method SEO is the right way.