In this article 9 sections
Likes and follower counts look good on a slide, but they rarely tell you whether a campaign worked. These four measures are a better place to start.
Start with your goal
The right metrics depend on what the campaign is for. If you want awareness, views and reach matter. If you want visits, look at traffic. If you want sales, look at conversions. Agree your goal and your measures before the campaign starts, and set up tracking before anything goes live. It is much harder to add it afterwards.
Be careful with “vanity” metrics such as follower counts and likes on their own. They are easy to see, but they do not show whether people took action. If you are still choosing creators, our guide to the four qualities to check when selecting influencers will help.
1. Website traffic
Traffic is often the first sign that a campaign is reaching people. Use your web analytics tool, such as Google Analytics, to see how many visits come from the creator’s links, which pages people land on and how many are new visitors.
Give each creator their own tracked link, so you can tell them apart. If you are promoting one product, watch that product page: views, time on the page and new visitors all help show interest.
2. Engagement
Engagement shows whether the content resonated. Count likes, comments, shares, saves and brand mentions. Read the comments, too. They often tell you more than the number does. Platforms such as Instagram and YouTube report these for you in their own analytics.
Engagement does not always lead to sales, but it is a useful sign that an audience cared. It is also one way to tell a creator with a truly engaged audience from one with a large but quiet one.
3. Sales and conversions
For many brands, sales are the point. A conversion is any action you want someone to take: a click, a sign-up or a purchase. Look at the share of people who completed that action after seeing the creator’s content.
To connect sales to a creator, use trackable links, unique discount codes and UTM parameters. UTM parameters are short tags added to a link so your analytics can show where visitors came from. Together they let you see what each creator contributed.
4. Return on investment
Return on investment compares what the campaign produced with what you put in. Include everything: fees, free product, shipping, event costs and your own time. A big following is no use if it does not turn into results that justify the cost.
Compare creators, platforms and content types against each other. Then put more of your budget into what works and adjust what does not. A smaller creator can sometimes deliver a better return than a larger one. Our post on nano-influencers looks at when that might be the case.
Keep your reporting honest and simple
Choose a small number of measures and report on them the same way every time. Note what you learned and what you would change. And remember that every sponsored post should be clearly labelled as an ad. The ASA, CAP and CMA guide explains what that means in the UK.
For a wider view of how campaigns fit together, read our guide to creating your influencer marketing strategy, or find out why consumers trust influencer product reviews.
When an agency can help
Measuring a campaign well takes planning. With Ritual’s influencer marketing service, powered by Infinite Influence, we agree the measures with you up front. You get views, clicks, codes and sales in one report, with recommendations for what to do next.
Frequently asked questions
What are the most important influencer marketing metrics?
It depends on your goal. Traffic, engagement, sales and return on investment are a good starting set. Pick the ones that match what the campaign is for.
What are UTM parameters?
They are short tags added to a web link. Your analytics tool reads them to show where visitors came from, so you can compare creators.
Are followers and likes enough to judge a campaign?
Not on their own. They show attention, but not whether people took action. Pair them with traffic, conversions and cost.
Sources
- Influencers’ guide to making clear that ads are ads (ASA | CAP) (ASA / CAP, checked 25 Oct 2026). UK ads must be clearly labelled.
