What impact does snapshot hijacking have on the website? How to prevent snapshot hijacking?

Many SEO friends estimate that they are familiar with Baidu snapshots, but they are not clear about snapshot hijacking. What is snapshot hijacking? In theory, snapjacking uses hacking techniques to gain access to your ftp. When you don't pay attention, when the spider is crawling your website, change the data (usually at night), wait until the spider crawls your snapshot, and then change the data back. In this way, your website snapshot is hijacked, and you can't find any problems when checking the code, because you have modified the title, keywords, and description of the main site. As a result, the snapshot stays for too long.

Later, the trouble became too great. You can directly modify your website information through the root directory file, and this can be detected through batch permission escalation.

In other words, traffic from search engines will automatically jump to the specified web page. It does this by automatically modifying the results of third-party search engines without user authorization. Typically, such programs add their own ads or link to websites in the results of third-party search engines to gain traffic. You can also use the following search engine hijacking codes. Define regular expression. Then the http referer is part of the header. When the browser sends a request to the web server, it usually brings a referer to tell the server which page I am linking from, and the server can get some information for processing. ) Reference-based hijacking is code assignment to the where variable. Then do a regular match. If there is a keyword, it will jump to the corresponding page.

By searching for keywords in the search engine or directly entering the website, you can jump to another website that is completely different from the website captured by the search engine. Clicking on the website can open an illegal gray website, such as a gray website, which is called a hijacked website snapshot.

If Baidu Snapshot is hijacked, you should check whether the recent website files have been changed (basically, you can see the change time in ftp), find out the irrelevant code and delete it, modify the website's ftp account, and the website's domain name account and password, complete the previous operations, and then go to Baidu Snapshot to give feedback and wait for recovery.

Baidu snapshots are usually hijacked by black hat SEO through your ftp, and the source files of your website pages are changed to achieve the purpose of hijacking the snapshots, so the security of the website space server is particularly important. Try changing the ftp password from time to time. Don't make passwords too simple, and don't share your account and password with people you don't know. In addition, don't choose some servers with poor security just for the sake of cheapness.