The internal interface of AEM to identify broken links on a page is not of much use to admins and authors. Also keeping LinkChecker Service running on multiple instances of AEM (author, publish) will decrease performance, and it is not advised by AEM. To overcome this business problem, the TA LinkChecker tool will give a mind map view of broken links and the exact location on which page the link is available and vice versa. TA Link Checker allows you to fix internal and external links using available Adobe Experience Manager templates, because this tool is integrated into AEM.
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Blog: Identify and Fix Broken Links – AEM Link Checker
Platform: Adobe Experience Manager
Versions: 6.x