To measure the success of your signup forms, track the following metrics: - Conversion Rate: The percentage of visitors who complete the signup process. - Bounce Rate: The percentage of visitors who leave the form without completing it. - Subscriber Growth: The rate at which your email list is growing over time. - Engagement Metrics: Open rates, click-through rates, and other metrics that indicate how engaged your new subscribers are with your emails. - A/B Testing Results: Insights from different form variations can help identify which elements are most effective.