QuestCompletist

Enables you to see what quests you have completed, and what ones you still have to do. Supports server query, allowing you to query the blizzard server for all quests you have completed in the past.
 

In-Game Commands:

/qc
/questc

Important:

If this is your first time using the addon, make sure to go to “Zones” and update the server query from the button at the bottom.