This depends on how new the business is and what stage the marketing is at. Traffic shows whether people are finding you, but it does not tell you much on its own. Leads, meaning people who express interest by signing up or reaching out, are a stronger signal because they suggest the message is working. Sales take longer to come and are usually not a fair measure in the very early days. Watching traffic and lead quality together gives a more honest picture of whether the marketing is actually working. What do you think is the fairest metric to track in early stage marketing?