Measuring influencer marketing starts with clear goals before any post goes live. Some brands want sales, while others want attention or page visits. Sales can be tracked using special links or codes tied to each influencer. Attention can be checked through comments, saves, and shares, not just likes. Page visits show interest when people click from the post to the site. It also matters if new followers stay active later. Results should be compared with past campaigns to see progress. What signs should be used to judge success?