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originally did not want to talk about this topic of the black chain, but yesterday in the post I mentioned the site was linked to the black chain, simply talk about this topic. There is no doubt that a black chain also belongs to the Shanghai dragon, but it belongs to black hat tactics. Only a short while ago, black chain is very popular in the Internet, this transaction is also very popular. The reason for all this, because it is the natural ranking on the site promotion effect is significant, and the cost is very cheap, has become the choice of many people. The passage of time, in recent years, the search engine algorithm is improved obviously, also for black chain has made some changes, black chain effect are now so good? I will be what I know, the black chain a thorough analysis, from the simple principle to now Shanghai Longfeng effect, and the "future", I will talk about.
black chain and the chain is a pair of brothers, the name suggests is in the dark can not see the link, which is the search engine said hidden links. It is not difficult to obtain, also do not need to how high technology, as long as to get a FTP vulnerability scanning tool, then it will automatically go to scan the website loopholes, even on the chain. Although some people will say, my FTP password is very complex, the website program no loopholes, very diligent patching, normally do not see what the problem. But in fact, many website security measures do very place, such as the FTP password directly with the domain name that a few letters, so the domain name, the website of IP, then by "Mongolia" to find the password is not what difficult. In general, individual owners have done better in this regard, especially veterans, they are very Caution. But some novice webmaster is not pay attention to this problem, more serious is that many high weight site, such as the well-known industry station, education station and even GOV station, safety of their work can be said to be in a complete mess, coupled with high weight on edu and gov, is no wonder that they become hung black chain most people love the place. Even many professional people do the list of Shanghai Longfeng for others, in order to reduce the cost, optimize the website also spend money to buy black chain.
hidden links is very obvious in the previous 09 years, I was the beginning of the second half of the business website, at that time because you know what the little hands did not have much money, to find someone to buy some black chain. I still remember very clearly, put up a PR6 industry large, the day began to clear the site included the remarkable growth, the role of the black chain. Owners in each group, and Shanghai dragon group, also often sell black chain of people at that time really propaganda, obviously. Just search engine is in progress, no matter this thing could not have been. Probably in the second half of 2010, according to the observation of love Shanghai, love Shanghai algorithm have no small change, we believe that on November that also remember to change it. From then on, the role of the black chain began to shrink, especially some.