Several key metrics can be derived from click tracking: 1. Click-Through Rate (CTR): The percentage of recipients who clicked on any link in the email. 2. Click-to-Open Rate (CTOR): The percentage of recipients who clicked a link after opening the email. 3. Total Clicks vs. Unique Clicks: Total clicks count all clicks, including multiple clicks from the same user, while unique clicks count only one click per user. 4. Popular Links: Identifies which specific links in the email received the most clicks.