Convert.
Most of the traffic you paid for leaves without buying, and winning some of it back is usually the cheapest revenue a store can find. We start by measuring each step from product page to confirmation, and then we do the engineering ourselves: the page, the checkout, the ads, and the messages that reach people who leave halfway through.
Where conversion is won and lost.
Most of the people who reach your store leave without buying. That is normal, and it is also where the cheapest revenue in the business is sitting, because you have already paid to get them there.
The losses are rarely in one place. They accumulate: a product page that does not answer the obvious question, a shipping cost that appears late, a checkout that asks for an account, a form that fails quietly on a phone. Each one is small on its own.
Finding them is a measurement problem before it is a design problem. Until the funnel is instrumented step by step, every proposed fix is a guess about which step is actually costing you orders.
- Product pageEvery visit counted
- CartLost here: A question the page didn’t answer
- CheckoutLost here: Shipping cost shown late
- PaymentLost here: Account required to pay
- ConfirmationLost here: Form fails on a phone
Each step tracked as its own eventLost since the step before
- Of online carts are abandoned. The top fixable reasons are extra costs and forced account creation. Source: Baymard Institute, 2025.
- About 70%
What a growth agency does in conversion.
An audit on its own gives you a list of fixes, and someone on your side still has to build them. We take that part on: product page changes, checkout fixes, mobile forms that are easier to finish, and a full site or checkout redesign when the store has outgrown what it runs on.
We also set up the ad tech, so what a shopper sees after they leave matches what they did. That means a product feed your ad platforms can read, audiences built from what people browsed and added to cart, and server-side tracking that tells those platforms who already bought, so you aren't paying to retarget someone who already checked out. Creative design, the ads themselves, and buying the ad space stay with you or your agency.
Plenty of the people who leave will come back if they're reminded in the right way, so we build that too. Cart, checkout, and browse recovery that changes with cart value and customer history. Welcome series based on how someone signed up. Price-drop and back-in-stock triggers. And discount rules, so offers don't go to customers who would have paid full price anyway.
Why hire a growth agency for conversion?
Conversion work fails more often for lack of a way to read the result than for lack of ideas. Traffic mix shifts week to week, and a rate that moves after a change may have moved for reasons that have nothing to do with the change.
An agency brings the testing discipline: one variable at a time where volume supports it, a holdout where it does not, and a read on results that accounts for what else moved that week.
It also brings pattern recognition across stores. A checkout problem you have never seen is usually one someone has seen before, which shortens the distance between noticing a drop-off and knowing what to do about it.
It also helps that the same team measures the problem and builds the fix. Nothing has to be handed from an analyst to a separate developer, so less gets lost along the way.
The Tarsus Conversion Strategy.
Our conversion strategy starts with measurement, because it tells us where to start. We put events on each step from product view to completed order, so you can read the funnel step by step instead of looking at one conversion number at the end, and we give you an honest read of what your current data can and can't tell you. Session recordings and drop-off by step show where people get stuck, and that's where the engineering goes.
Then we decide the order of work. Drop-off points get ranked by how much traffic passes through them and how clear the cause is, and that ranking sets the plan rather than a generic list of best practices.
We build the changes ourselves, from a small page or checkout fix to a full redesign, and release them in a way you can read: one change at a time when there's enough traffic, staged rollouts when there isn't.
Conversion also isn't a fixed target. Traffic sources change, the catalog changes, and a page that tested well last season can stop working, so we keep re-reading the funnel and adjusting to what it shows.
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