5 strokes of the black chain on your site

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Black chain is a means of SEO black hat, is hackers use illegal invasion of other sites to embed hidden links, than the normal purchase link, because of its cheap and popular, of course, because the black chain may be the webmaster deleted, so the chain has instability, But for those who through profiteering industry profit group to build site webmaster is very cost-effective. The prevailing trend of the black chain is illustrated by the following picture (black chain and name dark chain)

Then how should we prevent the site from being hung black chain, how to check whether the black chain is hanging, first of all to see the black chain of several common ways, now black chain is generally through the site in the source code inserted CSS style to complete:

1. Make the link information invisible by setting the display property to none.

2. By linking the characters infinitely small, to reach the naked eye is not visible.

3. Links are not visible by making the link character consistent or similar to the background color of the Web page.

4. Link location, so that links appear to the visible screen, to achieve the black chain effect.

How to prevent the website from being hung black chain and check black chain:

1. Frequently view the source code of the website

The general black chain will be hung on the home page, we open the home page right button "View source code", see if there is not our own added to the unknown outside the chain.

2. Use "website dead chain Detection" or friend chain detection webmaster tools (such as http://link.chinaz.com/)

3. View Web site file modification time on the FTP tool

such as our site upload time is March 24, and most of the file modification time is March 24, of which one or two of the changes in the time is a recent day, we will pay attention to, you can edit the file, check the source code, whether there are links to join. Of course, if you are the Asp+access site, because its database will be with visitors, such as the real-time update of the modification time, this situation can be ignored.

4. Web site FTP username and password not too simple, and it is best to often modify

5. Check if the entire server is compromised

You can use the "with the IP site query function" To see if the same IP other sites are also hung black chain, if this situation immediately contact the service provider processing.

For long to do station friends, Quanzhou seo advice to stay away from the black chain bar, because of its uncertainty, may be deleted at any time, do seoer know the stability of the chain on the importance of ranking, he may have been hanging, and if your site because of the chain is down the right, you want to remove the chain of recovery, which you are not around.

But the heart of the harm must not be put into the hearts of no one, because these like to use black chain optimization of the site, most of them are gray or even black industry, such a chain itself for the site is unfavorable, and its those sites if the right to be down, by K, for your influence is even greater, So it is very necessary to check whether your website is hung black chain regularly.

The original author: feather Apprentice, Wing SEO team members-solitary rattan, the original address: http://www.gutengseo.com, welcome everyone to Pat Bricks, SEO Senior Exchange Group 546,269,451 exchanges and communication!