How Vervali Load Tests Shopify Stores Before Black Friday
How Vervali load tests Shopify and Shopify Plus stores before Black Friday: the Shopify rules, what gets tested, when to start and what it costs.
Cloud Performance and Scalability Testing
on Your Estate
Load, autoscaling and how the estate behaves when traffic rises, on the environments it actually runs in, 9am to 1pm Eastern, with delivery from India. We check whether the estate scales out, scales in, and holds the peak you named. The peak, the environments and the quote are agreed before testing starts.
150+ clients
450+ projects
275+ engineers
15+ years
ISO/IEC 17025:2017Accredited testing laboratory
CMMI Maturity Level 3The process is written down and repeats
ISO 9001:2015Quality management
ISO/IEC 27001Information security
Load, Autoscaling and How the Estate Behaves
A check of the cloud estate under the traffic you named, before a peak finds the limit for you.
Load on the Cloud Estate
The traffic those environments actually take, measured against the peak you wrote down. AWS and Azure are the platforms we test on.
Autoscaling and Scale Checks
Whether capacity scales out, scales back in, and what that costs once the spike is over. We do not publish a savings percentage.
Bottlenecks Before a Peak
Idle capacity, a queue that backs up, and the instance that is already hot on a quiet day. The quote names the weeks after we see the estate.
A peak you have not tested is how a sale day becomes an outage.
Book a Discovery CallWhat the Run Measures
The scope is the estate under the traffic pattern in the quote.
Named Peak
Traffic pattern, duration and environments are written down first. We do not invent a concurrent-user number.
Scale-Out and Scale-In
Rules checked under that pattern, including whether capacity drops after the spike instead of staying hot.
What We Report
Findings ranked by risk, with the bottleneck and what to change first. Deeper soak uses performance testing.
When to Run It
Before a peak you cannot miss, and after a change that moves capacity.
Before a Peak
A sale, a launch, or a customer you cannot afford to lose. The review looks at the environment you already run.
After a Capacity Change
A change that moves autoscaling, instance size, or the path traffic takes. A dashboard screenshot is not the test.
Shared Estates
Tenant isolation uses cloud and SaaS testing. Multi-tenant tuning uses SaaS optimisation when that is the question.
Case Studies
Estates tested so a real peak did not find the limit first.
Diagnostics chain · Back-end platform
A diagnostics chain needed its back end to keep pace with growing patient volume. Vervali rebuilt the platform and its integrations so the estate could carry 50% more traffic without slowing the services patients and labs depend on.
50% more trafficPrivate-Sector Banks
Two leading private-sector banks gained 60% faster loan processing and 50% less agent onboarding time on platforms that had to stay up through every change.
Cybersecurity SaaS
DDoS simulation on a live SaaS product, showing how the estate fails under attack and what it takes to absorb it.
How a Scale Check Starts
The quote names the weeks after we see the estate, 9am to 1pm Eastern with delivery from India.
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01
Review One Environment
We look at one environment and the peak it has to survive, free of charge.
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02
Agree the Peak
Traffic, duration, environments and whether soak is in the same week go into the quote.
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03
Run the Test
We load the estate, watch scale-out and scale-in, and record where it slows.
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04
Report the Limits
Findings are ranked by risk, with what to change before the peak.
Frequently Asked Questions
Cloud performance testing checks load, autoscaling and how the estate behaves when traffic rises, on the environments it actually runs in. We measure whether capacity scales out, scales back in, and holds the peak you named on AWS or Azure. Deeper soak and the tool choice are a separate performance testing engagement. Tenant isolation is covered under cloud and SaaS testing when that is the question.
Name the peak, then test whether the estate scales out, scales back in, and what that costs when the spike is over. A free review of one environment shows what you already run before the quote is written. We do not publish a savings percentage. The written quote names the environments, the traffic pattern and the weeks. If several customers share the estate, tenant isolation is checked as part of cloud and SaaS testing.
Not every patch. A change that moves capacity, autoscaling, or the path traffic takes should be checked before it becomes the peak. A dashboard screenshot is not a test. Deep regression of the application is a separate performance testing engagement. For a capacity change, we start with a free review of one environment, then the quote names whether this week needs a scale check or a fuller load run.
The quote names the tools against the estate you run, not a catalogue we cannot evidence on this engagement. AWS and Azure are the platforms we test on, and the plan can name the clouds you already run. Load generators and monitors are chosen for the peak you wrote down. Deeper tooling for soak and application load is part of performance testing when that engagement is in the same quote.
We run the traffic pattern you wrote down against the environments you named, for the duration in the quote. That is a sale day or a launch, not a quiet weekday we treat as a peak. We watch response time, scale-out, scale-in and where a queue or instance saturates. Soak and longer peak runs are scoped with performance testing when the same week needs both.
It can show idle capacity, oversized instances and a scale-in that never ran after the spike. We do not publish a savings percentage we cannot evidence on your estate. The report names what is oversized and who owns it. Ongoing cost control after go-live is a separate operating engagement. The test itself tells you what the peak costs and what stays running when the traffic drops.
Before a peak you cannot afford to miss, and after a change that moves capacity or autoscaling. We do not publish a calendar that fits every estate. A sale, a launch or a large new customer is the usual reason to run it again. The quote names the weeks after we see what you run. A free review of one environment is how we judge whether this is the week to test.
Work is scoped to the estate, the peak you named and whether soak sits in the same week, then quoted before we start. Clutch lists Vervali at $25 to $49 per hour. What moves the price is the number of environments and how long the traffic pattern runs. After a free review of one environment, the written quote names the weeks and the price. Deeper application load is priced only if you ask for it.
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