A few days ago, in helping a multinational enterprise to do the site program, on the Internet to find a few of their peers on the website for reference. Because they are basically English websites, they use Google's translation tools. Inadvertently found that many foreign websites are hung up more than 10 dozens of bad black links. Black links As the name implies is improper links, because most of the black links are linked to the "unhealthy" site, a site once too many black chain, will eventually lead to the search engine blocked. Because none of the search engines like such a disgraceful approach.
Coincidentally, the author of the company recently part of the customer's website, there are different numbers of black links, this has to cause us enough attention. Part of the previous hackers in order to reflect their achievements and mischief of the Black People's website, and later developed to some sites to coerce, and even steal customer data. However, the prevalence of black links, such a disgraceful grey hat gimmick, seems to allow hackers to find a new profit point. Baidu just suddenly dawned, now black link seems to have become an industrial chain. Someone is responsible for technology, someone specifically responsible for the sale of black links, but also the United States its name "dark chain."
For those who have a higher PR value of the site, should pay attention to prevention. A new site, its own weight is not high, links will not play much role, but the PR in more than 4 of the site, hackers can take to hang black chain to make money. Perhaps inadvertently, your site is linked with bad information outside the chain, and this kind of outside the chain is generally not found, unless you are very professional technicians.
For the rampant black chain, the only thing we can do is to strengthen the security of the site data, timely check their own website. In fact, the operation is very simple, that is, in the blank of the Web page click the right mouse button to view the source file can be found in time to repair the problem. Now the black chain even rampant to not only on the homepage hanging, many of the inside page also to hang bad information. The site's regular and irregular data backup is also very important, after all, found a black chain of pages to check to delete is a waste of time. If you have a backup file, simply overwrite the original source program.
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