The core metric of an affiliate network is performance. You need to focus on clicks generated by affiliates. Affiliates must drive conversions for the network to succeed. The network tracks sales made through affiliate links. Revenue is another important metric for the network. Affiliates must maintain a good click-to-conversion ratio. The network uses these metrics to measure success. You must also monitor affiliate payouts to ensure fairness. Growth in the number of active affiliates shows network strength. The quality of traffic brought by affiliates is also key. These metrics determine the overall health of an affiliate network.