Really liking this program -- you can collect URLs and paste them in and easily import/export the details. It will both check for updates (the red star icon) as well as bad links. Appears to be in active development.
WebChangeMonitor with CSV export spreadsheet in Calc
Status: Portable writes to WebChangeMonitor.config
https://www.softpedia.com/get/Internet/ ... itor.shtml
https://www.ghacks.net/2019/06/30/webch ... s-for-you/