4th June, 2026
Every eCommerce business reaches the same crossroads eventually. Delivery performance has slipped, costs have crept up, or a competitor seems to be doing something you're not. The question is always the same: how do you compare shipping carriers before you commit to a change?
The problem isn't the question. It's that most businesses have no reliable method for carrier comparison before they switch. So they stay put, or they leap and hope for the best. Either way, the decision is driven more by frustration than evidence.
There's a better way.
What Is Virtual Switch?
Virtual Switch is a carrier simulation engine built into Voila. It lets merchants run a carrier performance comparison powered by data from across the entire Voila platform. The simulation models how alternative carriers would perform on their specific shipment profile, without a single change to their current setup. With 160 carriers in Voila's network, there's no shortage of options to simulate against.
No sales pitch. No gut instinct. Real carrier performance data from across the Voila network, doing the work.
It's one of the most powerful tools we've ever built, and it exists for one reason: to remove the risk from carrier switching and turn decision-making into a genuinely data-driven process.
What Does a Carrier Performance Comparison Show You?
A Virtual Switch simulation gives you a side-by-side breakdown across three dimensions:
Cost. What would your shipping spend look like with an alternative carrier, modelled against your order profile using real data from across the Voila platform? Where are the savings on offer?
Delivery performance. How do transit times compare on the routes, weights, and service levels your business actually uses? Not theoretical averages. Real-world performance data.
Reliability. Which carrier meets delivery promises most consistently on shipments like yours?
Cost | Delivery Performance | Reliability |
Projected spend with an alternative carrier, modelled against your order profile | Transit time comparison by route, weight, and service level | On-time delivery rate matched to your destinations and service types |
Benchmark your incumbent carrier against alternatives. Identify cost savings. Understand delivery performance differences. All before you make a move.
Curious what this reveals for your carrier setup? Book a demo simulation.
When Should You Run a Carrier Comparison?
Most businesses consider comparing carriers after something goes wrong. A run of late deliveries, a spike in customer complaints, a conversation with finance about shipping costs. Waiting for a problem to force your hand is exactly the kind of reactive decision-making Virtual Switch is designed to replace.
Virtual Switch runs the comparison using real carrier performance data from across the Voila platform. Evaluating DPD against Royal Mail on domestic next-day. Comparing Evri and DHL on economy parcels. Pressure-testing a new regional carrier's pitch. Whatever the question, the data gives you the answer.
Run a simulation if any of the following sounds familiar:
Your on-time delivery rate has dropped without an obvious cause.
Your shipping costs have increased but service quality hasn't improved to match.
You're entering a new region or channel and want to validate which carrier suits your specific order profile. See our guide to managing multiple carriers without middleware for more on building a resilient carrier setup.
A prospective carrier has pitched you and you want to pressure-test their claims against real-world performance data.
You don't need a problem to justify the analysis. You just need to want a better answer.
How to Run Your First Simulation
No data import needed. Virtual Switch draws on Voila's full platform dataset. Just open the tool, set your parameters, and go.
Choose your comparison carriers. Model multiple alternatives at once, which is useful if you're weighing up more than one option.
Review your results. Voila returns a detailed breakdown by cost, transit time, and on-time performance. Export it to share with your team or take into conversations with prospective carriers.
Why It Matters
Businesses stay with underperforming carriers for one reason: switching feels risky. Integrations to update. Processes to change. Customers whose experience hangs in the balance.
Unlike rate shopping tools that compare quoted prices in real time, Virtual Switch models actual historical performance: what would have happened, not what a carrier claims will happen. For businesses that have been burned by a carrier's promises before, that distinction matters.
When the data shows clearly that an alternative carrier would have delivered your orders faster and cheaper over the past six months, the decision stops being a leap of faith. It becomes straightforward.
Better carrier decisions, backed by real-world data. None of the risk.
Frequently Asked Questions
What Is the Best Carrier for eCommerce in the UK?
It depends entirely on your order profile. Royal Mail suits lighter domestic parcels; DPD and Evri perform strongly on next-day and economy domestic respectively; DHL is well-suited to heavier or international shipments. The right answer depends on your specific routes, weights, and service levels, which is exactly what Virtual Switch helps you determine.
Does Virtual Switch Require Me to Actually Switch Carriers?
No. The simulation draws on Voila's platform data, not your live carrier configuration. Nothing changes in your setup until you decide to act on the findings.
What Data Do I Need to Run a Carrier Simulation?
None. Virtual Switch draws on data from across the entire Voila platform, so you don't need to import your own shipment history. You simply define your order profile: the routes, service levels, weight ranges, and destination zones you want to model against. The platform data does the rest.
Can I Compare More Than One Carrier at a Time?
Yes. You can run simulations against multiple alternatives simultaneously, which is useful if you're evaluating several options before making a decision.
How Long Does a Virtual Switch Simulation Take?
Most simulations complete in minutes. The time depends on how many carriers and parameters you're modelling.
How Is This Different from a Carrier's Own Performance Data?
Carriers report aggregate performance across their entire network. Virtual Switch models performance against your specific shipment profile: your routes, weights, service levels, and destinations. It also draws on the full Voila platform dataset rather than any one account's history, giving every simulation far greater statistical depth than a single-account analysis would provide.
Related Reading
Top Multi-Carrier Shipping Software for Growing Brands
How to Manage Multiple Carriers Without Middleware
Top nShift Alternatives for eCommerce Brands in 2026
Ready to Find Out If You're with the Right Carrier?
Book a demo and we'll walk you through a Virtual Switch simulation.
