Influencer campaigns are hard to track when every creator posts the same link. A brand that pays five creators to post about the same product usually sends all five the same product URL. A week later the store shows a spike in traffic, and nobody can say which creator produced it. Instagram passes every in-app tap as l.instagram.com, TikTok traffic often arrives with no referrer at all, and GA4 files a large share of both as direct.
The fix costs a few minutes per creator and needs no influencer platform. This guide covers the link setup, the UTM template, how links and promo codes split the work, the brief to send each creator, and a scorecard for deciding whose contract to renew.
Why one shared link breaks influencer tracking
When five creators post the same URL, the store sees five audiences arriving through one door. The referrer field cannot separate them, because they all come from the same app. A single creator posting on Instagram and TikTok makes it worse: two platforms, one URL, and no way to tell which post did the work.
Asking creators for screenshots of their own analytics fills part of the gap. Those numbers show taps on the creator's side, though, not visits that reached your site, and they arrive whenever the creator remembers to send them. You end up paying for a campaign you can only describe by its total.
Influencer tracking links: one per creator
Give every creator, and every platform that creator posts on, a separate short link. Create them in a link shortener and set the slug yourself instead of accepting a random code. A slug pattern of campaign-creator keeps the report readable months later:
linx.ly/spring-kitchenlablinx.ly/spring-kitchenlab-ttfor the same creator's TikTok postlinx.ly/spring-dailyfit
Each link counts its own clicks, with the visitor's country and device, from the first tap. That alone answers the main question: which creator sent people.
To carry the same labels into GA4, put UTM parameters on the destination URL before you shorten it. Use one template for the whole campaign:
| Parameter | Value | Example |
|---|---|---|
utm_source | The platform | instagram, tiktok, youtube |
utm_medium | Always the same | influencer |
utm_campaign | The campaign | spring-2026 |
utm_content | The creator's handle | kitchenlab |
Write every value in lowercase. GA4 treats Instagram and instagram as two different sources, and one capital letter splits a creator's results into two rows. A destination that already carries UTM tags works on any plan. The UTM builder and the UTM breakdown inside Linxly are part of Pro and Business, as is the referrer report.
Influencer promo codes vs tracking links
Promo codes are the other common method, and the two do not compete. Each one sees a sale the other misses.
| Situation | Tracking link | Promo code |
|---|---|---|
| Viewer taps the story sticker and buys | Counted | Counted only if the code is used |
| Viewer hears the code in a podcast and types it at checkout | Not counted | Counted |
| Viewer taps, leaves, and buys a week later | Click counted | Counted if the code is used |
| Code is posted on a coupon site | Not affected | Sales credited to the wrong creator |
| Viewer taps but does not buy | Counted | Not counted |
The last row matters more than it looks. A creator who sends 800 people who never buy has a different problem from a creator who sends 80 who all buy. Codes show only the buyers, so the first creator looks the same as one who sent nobody. The link shows the traffic, which tells you whether the issue is the audience or your landing page.
Use both: a link per creator for the traffic, and a code per creator for the sales that happen without a click.
What to send the creator
Most tracking breaks on the creator's side. A creator copies the product URL from your site instead of the link you sent, or shortens it again with their own tool, and that creator's clicks disappear from your report. A short written brief prevents most of it.
Your link: linx.ly/spring-kitchenlab (use this one, not the product page address)
Your code: KITCHENLAB15
Where to put it: the story link sticker, your bio for the campaign week, and the first line of the YouTube description. Instagram feed captions do not make links clickable, so say "link in bio" there.
QR code: attached. Use it if you show the product in a video someone might watch on a TV or laptop.
Please do not: shorten the link again or change it to the product URL.
The QR code generates automatically with each short link, so attaching it takes no extra work. It counts scans together with clicks on the same link. If a story link sticker is new to the creator, fixing a link that is too long for an Instagram story covers what the sticker shows.
During the campaign: change the page, not the post
Creators post once, and their posts stay up long after the campaign. If the product sells out on day three, or the landing page has a broken checkout, you do not have to ask anyone to edit or delete anything. Change the destination of the short link and every post carrying it starts sending visitors to the new page. Editing the destination is available on every plan.
When the campaign ends, point the links at the product's regular page instead of letting them land on an expired offer. Old posts keep sending traffic for months, and that traffic is still worth having. If the offer must stop working on a fixed date, Pro and Business let you set an expiry date on the link.
Watch the click pattern while the posts are live. Linxly filters most automated traffic before it reaches the count, but no filter catches every bot. A burst of clicks from one country the creator's audience does not live in, or a similar number of clicks at the same hour every day, deserves a second look before it goes into the scorecard. Link click tracking lists the other signals.
Compare creators on a scorecard, not on followers
Raw click totals favor the biggest account. Divide clicks by the views the creator reports for the post and you get a number that compares a 30,000-view post with a 120,000-view post fairly. The figures below are illustrative:
| Creator | Post views | Link clicks | Clicks per 1,000 views | Code sales | Sales per 100 clicks |
|---|---|---|---|---|---|
| kitchenlab | 120,000 | 600 | 5.0 | 40 | 6.7 |
| dailyfit | 30,000 | 450 | 15.0 | 28 | 6.2 |
| homecafe | 80,000 | 160 | 2.0 | 3 | 1.9 |
On totals, kitchenlab wins. Per view, dailyfit is three times more effective, and their buyers convert at about the same rate. Smaller accounts usually charge less, so dailyfit is the stronger contract for the next campaign. homecafe needs a look at the country breakdown: if most of those clicks come from a country you do not ship to, the audience is the problem, not the content.
Country and device are included on every plan. Starter keeps 30 days of statistics, enough for a single campaign. Pro keeps two years, which you need if you want to compare this spring's creators with next spring's.
If you are promoting an app
App campaigns add one more failure point. A creator's audience is split between iPhone and Android, and a single store link sends half of them to a store their phone cannot use. A smart app link checks the device and sends each viewer to the App Store or Google Play, and it works inside the Instagram and TikTok in-app browsers, where most creator traffic opens. Give each creator their own app link, the same way as above. Promoting an app on Instagram covers the rest of the setup.
Frequently Asked Questions
How do you track influencer marketing?
Give each creator their own short link, add UTM tags with the creator's handle in utm_content, and give them a personal promo code. The link counts the traffic each creator sends, and the code counts sales that happen without a click.
Should I use promo codes or tracking links?
Both. Codes catch buyers who type the code without clicking, such as podcast listeners. Links catch everyone who clicks, including people who do not buy yet, which shows whether a weak result comes from the audience or from your landing page.
How do I compare creators with different follower counts?
Divide each creator's link clicks by the views of their post and compare clicks per 1,000 views. Then compare sales per 100 clicks to see whose audience actually buys.
Why does influencer traffic show as direct in GA4?
In-app browsers often pass little or no referrer information. Adding UTM parameters to the destination URL labels the traffic by platform and creator, so GA4 can attribute it even without a referrer.
Can I change the link after the creator has posted?
Yes. The post keeps the same short link, and you change where it sends visitors. This works for a sold-out product, a broken page, or moving traffic to a regular product page after the campaign ends.