For Shopify teams who have been told a rebuild will fix conversion

Before you rebuild, find out if the build is the problem.

We build custom Shopify and Shopify Plus stores. We will not sell you one until we know the platform is what is holding you back. A rebuild is the most expensive possible way to discover the constraint was somewhere else.

How much of your backlog is actually blocked by the platform?

Some of it certainly is. The question is which part, and whether the blocked part is the part costing you money. Those are rarely the same list.

Every change takes a quote

Small merchandising edits need a developer, so testing slows to whatever the queue allows.

The theme fights you

Template rigidity means each new layout is custom work, and the cost of trying something is higher than the value of learning it.

Speed debt caps the ceiling

Load time is bad enough that improvements elsewhere get absorbed before they show up in revenue.

Apps are holding the store together

A stack of overlapping apps, each solving one thing, collectively slowing everything and conflicting at checkout.

Nobody can say what a rebuild would buy

The case for rebuilding is that things are hard. That is a real cost, but it is not yet a number.

The costly assumption

A rebuild is a prescription, not a product.

Most agencies will quote you a rebuild, because a rebuild is the largest thing they can sell and the request is already in your mouth.

Sometimes it is right. Architecture genuinely blocks optimization, template rigidity genuinely caps testing, and no amount of careful work inside the current build will move the number. When that is true, rebuilding is the only honest answer.

But it has to be diagnosed, not assumed. A rebuild that fixes the wrong constraint costs you the build, the migration risk, and the quarter it took, and leaves the actual leak exactly where it was.

So we diagnose first. Every time, including when you arrive certain.

The technical diagnostic

What we inspect before anyone says rebuild.

  • Template rigidity: how much of a layout change needs a developer
  • Testing velocity: how long it takes to get a change live, and what that costs you
  • Speed and Core Web Vitals, measured against what your traffic mix actually needs
  • App stack: overlap, conflict, and what each one is genuinely load-bearing for
  • Checkout mechanics and anything customising them
  • Data and analytics integrity, including whether the current setup can even measure a rebuild's effect
  • Merchandising flexibility: what you cannot currently try
  • The commercial size of what is actually blocked

That last line is the one that decides. A constraint that is annoying and a constraint that is expensive are different problems, and only one of them justifies an architecture project.

Four honest outcomes

What the diagnosis can conclude.

Optimize the store you have

The most common outcome. The constraint is inside the current build and can be fixed without an architecture project. Usually a Profit Sprint.

Rebuild the architecture

Prescribed when template rigidity, speed debt or platform limits are demonstrably capping revenue and the forecast supports the investment. This is an Infrastructure Build. It is prescribed after diagnosis, never sold from this page.

Migrate to Shopify

When you are on another platform and the move is justified by what the diagnosis finds, not by the fact that we build on Shopify.

Keep your platform, we advise

When your team handles implementation and what you need is the diagnosis and the testing strategy, not our developers.

Grouped by what it is for, not by what it is called.

Making change cheap

Custom theme architecture built so your team can ship merchandising and layout changes without a developer in the loop. The point is not the build. It is what testing costs afterwards.

Removing drag

Speed and Core Web Vitals work, app stack rationalisation, and cleaning up whatever is quietly slowing the path to checkout.

Extending the platform

Custom apps and integrations where Shopify does not do the thing your business needs, built to be maintained rather than to impress.

Protecting the path

Checkout mechanics, subscription flows, and the parts of the buying path that are expensive to get wrong and invisible when they are right.

Keeping it standing

Ongoing maintenance, security, and the unglamorous work that stops a good build degrading into a stack of workarounds.

If migration is the answer

The parts of a migration that go wrong.

A replatform is mostly risk management. These are the things that quietly cost revenue when a migration is run by people optimising for launch date:

  • URL structure and redirect mapping, so search equity survives
  • Analytics and tracking continuity, so the before and after are comparable
  • Checkout and payment configuration
  • Subscription and recurring billing migration
  • Customer, order and historical data integrity
  • Third-party integrations and whatever depends on them
  • Launch QA against the buying path, not just the page templates

We plan a migration backwards from measurement. If the new store cannot be compared to the old one, nobody can tell you whether it worked, and you will have spent the money to find out nothing.

The evidence

Three leaks, three measured outcomes.

Every result below names the change we made, the sample it was measured across, and the window it was measured over. Where we do not have a published result yet, we say that instead of filling the gap.

The technical work exists to make changes like these possible and cheap to test.

Offer and message clarity · Primal Queen, women's health supplements

A pricing structure change lifted conversion rate by 20%, measured across 865,909 sessions at 90% confidence.

MeasureValue
Conversion rate+20%
Revenue per visitor+3%
Window8 days
Sessions865,909
Confidence90%
window ✓sessions ✓confidence ✓RPV beside CVR ✓

Largest session sample in our test history. Conversion rate was the primary metric. Revenue per visitor rose 3%, which did not clear the decision threshold on its own.

Landing-page continuity from ad to page · UndrDog, apparel

A landing page restructure generated $175K in projected monthly revenue contribution, measured over 5 days across 73,873 sessions at 90% confidence.

MeasureValue
Projected monthly contribution$175K
Window5 days
Sessions73,873
Confidence90%
window ✓sessions ✓confidence ✓projected

Projected from a 5-day window. Short-window directional projection, not yet validated across a complete trading cycle.

Product-page buying certainty · Canada Welding Supply, industrial ecommerce

A product page redesign generated $71K in projected monthly revenue contribution, measured over 30 days across 71,833 sessions at 90% confidence.

MeasureValue
Projected monthly contribution$71K
Window30 days
Sessions71,833
Confidence90%
window ✓sessions ✓confidence ✓projected

Our longest test window. When the window matters more than the number, this is the one to read.

Projected monthly contribution is extrapolated from the test window. It is not revenue banked, and we will not present it as though it were.

Results are specific to the cited experiments. Not every test wins, and projected contribution depends on the measurement window and store economics.

Six of the nine leaks VASTA inspects do not yet have a published result behind them. Those are described as process, not proof, until a proof pack exists. How we measure

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The VASTA agreement

Agency fatigue is earned. These are the boundaries.

  • No diagnosis, no pitch.
  • No proof, no public claim.
  • No scope creep disguised as strategy.
  • No-fit means no forced sale.

And no rebuild we cannot justify with what the diagnosis found.

This works when the constraint is worth finding.

Likely a fit

  • Shopify or Shopify Plus, with meaningful traffic and revenue
  • Development speed or template rigidity is visibly slowing you down
  • You want the platform decision made on evidence
  • Your team will provide the access measurement needs

Probably not a fit

  • You want a rebuild regardless of what the evidence shows
  • Pre-revenue, or too early for the investment to make sense
  • You are looking for the cheapest available developer
  • You are unwilling to establish a baseline before the work

Also a fit. On another platform? You can still qualify, whether you are weighing a move to Shopify or keeping your platform and using us for diagnosis and strategy.

Before you talk to us.

We can, after the diagnosis. If it confirms what you already believe, you have a scoped brief with the evidence behind it. If it does not, you have saved a quarter and the cost of the build.

The technical inspection happens inside a Profit Sprint, which runs 21 days and starts with the leak map. If you want a read from outside first, the Revenue Leak Audit is delivered in 3 business days.

Then we say so, and prescribe an Infrastructure Build with the reasoning attached. It comes with a mandatory follow-through period, because a new build with nobody optimising it is a slower version of the same problem.

Often, yes. The diagnosis is written to be actioned by whoever is best placed. Where that is your team, the recommendation says so.

Ongoing execution exists and is prescribed when the evidence supports continuing. It is not the automatic next step after a build.

Shopify and Shopify Plus are the deepest implementation specialty. If you are on another platform and considering a move, or you want the diagnosis while your own team implements, you can still qualify.

Find the constraint before you buy the fix.

Share your store and what is slowing you down. If the platform is the constraint, we will show you why. If it is not, you should know that before signing a build.