Platform / Performance

Fast when it matters: performance at peak traffic

nexCommerce is engineered to stay fast when traffic spikes: stateless .NET and Go microservices scale horizontally on Kubernetes, Redis absorbs read traffic, RabbitMQ decouples order processing so checkout never waits on downstream systems, and server-rendered storefronts are served from the CDN edge.

Key takeaways

  • Horizontal autoscaling per service: checkout, search and catalogue scale independently.
  • Read-heavy paths — catalogue, pricing, availability — served from Redis and the CDN; writes queued through RabbitMQ.
  • Order creation is acknowledged in milliseconds and processed asynchronously with idempotency keys.
  • Observability with Prometheus and Sentry, with service-level objectives per service.

What happens on a campaign day?

The load path is designed so that the expensive work happens away from the customer. Checkout acknowledges and queues; everything downstream catches up.

  1. 01Traffic arrives at the CDN edge; static and server-rendered pages are cached with short TTLs and stale-while-revalidate.
  2. 02Search, catalogue and pricing read from Redis; cache misses hit horizontally scaled services.
  3. 03Cart and checkout write to queues — order creation is acknowledged in milliseconds and processed asynchronously with idempotency keys.
  4. 04Kubernetes scales pods on CPU, memory and queue depth, while database read replicas absorb reporting.
  5. 05Fulfilment, picking and delivery agents consume the order stream without blocking checkout.

How does a high-traffic ecommerce platform avoid over-provisioning?

By scaling on the signals that actually predict load — service metrics and queue depth — rather than on a fixed schedule, and by pre-warming ahead of a planned campaign. Running peak capacity all year to survive four days of it is the expensive way to be reliable.

How is the architecture deployed?

As containers on Kubernetes in your cloud region, with infrastructure as code, blue-green releases and per-tenant isolation. Deploying into a UK or EU region keeps data residency answerable in a procurement questionnaire rather than a caveat.

About nexCommerce

How does performance connect to the rest of the platform?

The same queue that keeps checkout fast is what lets the fulfilment, picking and delivery agents work from a live order stream. Speed at the front and coordination at the back are the same architectural decision.

order orchestration software

Talk to an engineer about your peak

Bring your worst campaign day — orders per minute, concurrent sessions, the integrations that slow everything down — and we will walk through how the architecture handles it.

Is nexCommerce headless?

Yes: API-first services, with web and mobile front ends supplied, or bring your own. The commerce services do not assume a particular storefront.

How is a traffic spike handled without over-provisioning?

Autoscaling on service metrics and queue depth, with pre-warming for planned campaigns so the first minute of a sale is not the slowest.

Can it run in our own cloud?

Yes. nexCommerce deploys into your own cloud account, or as managed hosting if you would rather not run it.

Contact Us