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Do you know how to find broken links?
  v2.0 Posted at 3/03/2017 8:52 AM by Tiago Araujo
Often times, web pages are dynamic. Most link scanners are not capable of submitting form information. The trick is to allow a "door" for link scanner go through to scan a dynamic section of a site. A common technique is to hard code hidden link with a query string at the bottom of the page that allows the link scanner to follow into the simulated user input. See the following code for example:
<a href="KB.aspx?KBID=Q1097707">Q1097707 - How do I turn Option Strict on by default in VB.NET?</a>
Figure: Example source code - finding broken links

It will return all the knowledge base articles in a paged format. The link scanner will click the Next Page link and eventually scan through the entire knowledge base.

Google webmaster tools and Bing webmaster centre are useful tools to monitor links.​

In Google webmaster tools you can see all broken URLs, and even the pages who are linking to them (known as referrer, found in the 'Linked From' column)
Figure: In Google webmaster tools you can see all broken URLs, and even the pages who are linking to them (known as referrer, found in the 'Linked From' column)
In Bing webmaster center you can find the broken URL which is linked by the above URL
Figure: In Bing webmaster centre you can find the broken URL which is linked by the above URL

We have a program called SSW Link Auditor to check for this rule.

Link Auditor Scan Report
Figure: SSW Link Auditor automatically locate broken links

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