Please note that the first time you use the error report, you should click the “Reset Data” button if the scan process does not start automatically for you.
Automatic broken link checking.
As of Link Whisper version 1.6.8, the broken link checker now has an automated process that will scan all of the links listed in the Links Report. Every 10 minutes, a WordPress Cron event activates the link scanner. The scanner will scan a small batch of 10 links on each activation so as to not overload the system.
If you want to disable the automatic broken link checking, please refer to this guide. The broken link scan can still be manually activated even if the automated process is disabled.