If the page name or the uid (this is unique identifier that is given to each document in DocFx) is still the same after the update, you can do the following:

The build of the docs generates an xref map. This is an overview of all the articles. You can download it via http://docs.dataminer.services/xrefmap.yml. Once downloaded, open the file and look for an entry with the page name (e.g./Alarm_filters.html) or uid (e.g. uid: Alarm_filters). In the current version, you'll find an entry that points to dataminer/Operator_guide/Alarms/About_alarms/Alarm_filters.html which is the updated location.