Checkout that drags at peak
The busiest hour is when cart and payment steps usually slow first. Rehearse that path at forecast concurrency before the sale, not during it.
Solutions · Ecommerce
Ecommerce load testing that protects peak-day revenue.
Know before the crowd arrives. Evaluat helps ecommerce and digital teams rehearse browse-to-checkout journeys at the traffic you expect on your biggest day. Every virtual user is a real browser. You get a verdict stakeholders can read, and evidence engineers can act on.
Performance Testing is available through assisted private access.
Definition
What is ecommerce load testing?
Ecommerce load testing rehearses the journeys that make money on your store, browse, product, cart, checkout, at the concurrency of a peak day, measured in real browsers. It answers one question before the sale does: does the store hold at the traffic you are about to invite.
Load testing is the specific rehearsal at expected traffic; what is load testing covers the fundamentals, and load vs stress vs performance testing maps how the shapes relate. On Shopify, load testing means testing the theme and app layer you own, not Shopify's edge; we wrote up why Shopify stores slow down under load.
Where revenue leaks
The ecommerce risks we rehearse most often.
Qualitative and specific on purpose. We do not invent conversion statistics. We test your storefront at your forecast peak.
Paid traffic on a slow landing
Campaign spend lands on pages that must stay fast while the crowd arrives. Test the landing and PDP under campaign-shaped load before the budget goes out.
Replatform or theme rebuild risk
New storefronts often ship slower than what they replaced. Run the same journey on old and new before you cut over.
Third-party tax on every page
Reviews, chat, analytics, and A/B tags each look small. Together they tax every shopper. The report shows which ones hurt under load.
Surges, not averages
Email drops and flash deals arrive in minutes. Average-day capacity is not the same as surge capacity.
Evidence for the boardroom
An Executive Summary gives a plain-language verdict and ranked findings. Engineers get session video, network logs, and console output for the same run.
Platforms
Start from the stack you already run.
Shopify
Theme apps, apps that inject scripts, and checkout extensions often behave differently under concurrency than in a quiet admin preview.
Magento / Adobe Commerce
Checkout, catalog, and FPC boundaries are classic peak failure points. We test Magento stores catalog to checkout; see the dedicated Magento load testing page.
WooCommerce
Plugin stacks and shared hosting limits show up when carts and checkouts pile up together.
Headless and Hyvä
Lighter front ends still depend on Magento or API backends under load. Test the rendered journey, not only the edge cache.
Also see peak readiness, Performance Testing, and what a report contains.
Fit
When Evaluat is the right call.
Choose Evaluat when the question is what shoppers see under load: Core Web Vitals, third-party scripts, multi-step checkout, and a forensic record of the sessions that failed.
Choose a protocol tool such as k6 or JMeter when you need API-only or extreme request volume without a rendered page. Many teams use both layers.
Results describe what controlled browsers saw under the selected test conditions. They are not a substitute for field CrUX data on your customers' own devices.
Questions
FAQ
What is ecommerce performance testing?
It is a rehearsal of the journeys that make money on your store (browse, product, cart, checkout) at the concurrency you expect on a peak day, measured in real browsers so you see Core Web Vitals and failures the way shoppers do under the selected test conditions. Run at your expected peak, the same rehearsal is called ecommerce load testing.
How is load testing different from performance testing for an online store?
Load testing is the rehearsal at a specific concurrency: expected peak traffic, held steady. Performance testing is the umbrella that also covers pushing past peak (stress), sudden surges (spike), and long holds (soak). On a store they all run on the same browse-to-checkout journeys; only the traffic shape changes.
How many virtual users should an ecommerce load test use?
Your forecast peak, not a vanity number. Take the busiest hour you expect from history, promotions, and paid traffic plans, convert it to concurrent shoppers, and rehearse at that level with some room above it. We size the run with you on the demo call.
Who is this for?
Ecommerce and digital leaders who own peak revenue, plus the engineers or agencies who must prove the site will hold. You do not need to write scripts to get a plain-language verdict.
How is this different from RUM or PageSpeed Insights?
RUM and CrUX report what already happened in the field. A single lab audit checks one quiet page load. Evaluat rehearses forecast concurrency in controlled real browsers before the campaign or sale, with per-session video and logs when something slows.
Which platforms do you support?
Any public or staging storefront we can reach in a browser: Shopify, Magento / Adobe Commerce, WooCommerce, headless and Hyvä storefronts, and custom stacks. The journey is built step by step in a visual editor against your real site.
Is Performance Testing available now?
Performance Testing is available through assisted private access.
More answers on the FAQ page.