Black chain, SEO optimization industry A new lucrative industry, this industry is more and more developed, engaged in this industry seems to have never been so many, selling black chain friends everywhere are, in the more famous Webmaster tools site, everywhere is selling black chain ads, as for their black chain is how to get it? Some are formal access to, and some are illegal means to hang someone else's website link, and then to sell, although the black chain may bring you unexpected surprises, such as PR soar, Baidu snapshots frequent. But if the black chain processing is not good, will make the search engine records cheating suspicion, light drop its weight, the heavy is k, so small left suggest you SEO optimization go formal channels, although relatively slow, but safe, steady. At the same time be linked to the black chain of the site affected by black chain is very large, the following small Zolai said a customer's website in the black chain after the performance of the search engine.
1, the site Baidu snapshot not only update, but back to file. Baidu snapshot back to file everyone has seen, sometimes because of Baidu's algorithm adjustment will also appear this situation, but it is not common, we all know that in addition to cause Baidu snapshots do not update or even back to file is generally the quality of the site content, server stability, Web site changes and other reasons, of course, there is an important factor, There may be cheating, such as the black chain.
2, the site is included to reduce or even stop. Black chain is linked to the site included in the reduction is based on the number of days before Baidu to do compared to do, and some stations used to be able to collect hundreds of of the past, but since the site was linked to the black chain is gradually reduced, until the last few days included in the number of basic 0.
3, some of the key words ranked decline. Included in the reduction and snapshots do not update, the keyword ranking is also in the same, since the previous changes have, then this change appears in the expected. As a result of the reduction, to the site's long tail keyword is also less, a number of key keywords ranking also appeared in varying degrees of decline, but a more competitive keyword ranking in the first place.
If the site is hung black chain after the timely clearance, but because the site has been linked to the black chain before the discovery, and the search engine has crawled to the black chain text, so the above changes are taken for granted, but did not expect to be more serious than expected, although the site these days increased content has not been included, Webmaster tools to query the last week only included 5, but the 5 inside there is a home page, snapshot time is 20th, and check the site log can also find Baidu spider every day have visited, should not be a few days of the site will be restored included.
So everyone in doing site SEO when to beware of the site is hanging horse or hanging black chain, be hanged horse's website Everybody should have seen, be hung black chain this kind of thing really needs careful observation, an inattentive will because is hung the black chain to cause the website to be implicated, because the dark is usually the hidden text, does not see the source file is not found. I hope we can take warning! Article from the Webmaster Bar http://www.wzhan.net, reproduced Please specify, thank you!