Quickly determine where a Web page is linked to a black link

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Always wanted to write an article, to share with you, how to quickly determine the location of the linked black link. Exactly, today there is a webmaster said to use Webmaster Help net Link Check tool (www.linkhelper.cn) Check links, found a lot of links. Screenshot below:

But by searching the source code, the link that appears above cannot be searched. This is typically done remotely by downloading data in a XMLHTTP way and then writing to the Web page code. Open each other's website into the following screenshot:

View the source code as follows:

By looking at the source code, we can see that the black chain is hanging behind this code. We are looking for the corresponding ASP file, index.asp. Look at the source code as follows:

According to the browser to see the source code and index.asp source code to compare position. We can see that the linked black link should be in inc/syscode.asp or in the include file in syscode.asp. Open syscode.asp View, search xmlhttp (for ASP code, is usually used XMLHTTP or WinHTTP to download data remotely), find the black chain location.

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