Load Testing
& Capacity Planning
Every system has a breaking point. loadtest.qa is a specialist load testing and capacity planning consultancy that simulates millions of users against your infrastructure to find yours — before launch day does. Know your limits. Then exceed them.
Load Testing That Answers Real Questions.
Realistic Traffic Simulation
We don't blast your API with synthetic GET requests. We simulate real user behaviour — login flows, search queries, checkout processes — with realistic think times, session durations, and data variety.
Breaking Point Analysis
Every system has a breaking point. We find yours systematically — ramping traffic until something fails, identifying exactly which component fails first, and measuring the failure mode.
Capacity Planning, Not Just Testing
A load test tells you what breaks at 10,000 users. Capacity planning tells you what infrastructure you need for 50,000 users, how much it will cost, and when you'll need it.
Reusable Test Suites
Every load test script is designed for your team to re-run. Written in k6, Locust, or Gatling — checked into your repository, integrated with CI/CD, and documented.
Simulate. Break. Plan.
Every service delivers measured capacity data and reusable test infrastructure. Start with a Capacity Assessment to understand your current limits.
Capacity Assessment
3-day baseline load test establishing your system's current capacity, breaking point, and the component that fails first — your entry point to capacity planning.
Learn more →Pre-Launch Load Test
Comprehensive load test simulating expected launch traffic — Product Hunt, funding announcement, viral event — with a go/no-go capacity report.
Learn more →Scalability Validation
Progressive load testing from 1x to 100x your current traffic — identifying every scaling ceiling, bottleneck transition, and infrastructure threshold.
Learn more →Load Test Suite Development
Custom load test suite for your application — realistic user scenarios, data generation, CI/CD integration — written in k6 or Locust, checked into your repo.
Learn more →Soak Testing & Endurance
Extended-duration load tests (8–72 hours) revealing memory leaks, connection pool exhaustion, log rotation failures, and time-dependent degradation.
Learn more →Migration Load Validation
Load testing before and after a major migration — cloud provider, database, framework — proving the new platform handles your traffic before cutover.
Learn more →Load Testing Retainer
Ongoing capacity management — monthly load tests, capacity forecasting, scaling event preparation, and performance regression detection as your traffic grows.
Learn more →Industries We Serve
Load testing applies everywhere scale matters — but some sectors face higher stakes at peak traffic.
SaaS & Cloud Platforms
Capacity planning for multi-tenant SaaS platforms where traffic growth is continuous, tenant onboarding creates step-function load increases, and SLA commitments require demonstrated capacity.
See more →E-Commerce & Marketplace
Load testing for peak traffic events — Black Friday, flash sales, product launches — where minutes of downtime translate directly to lost revenue.
See more →Fintech & Payments
Load testing for payment processing, trading platforms, and financial APIs where throughput SLAs are contractual and capacity failures cause direct financial loss.
See more →Gaming & Live Events
Load testing for game launches, live events, and streaming platforms where thousands arrive simultaneously and any capacity failure is immediately visible.
See more →Healthcare & Telehealth
Capacity validation for health platforms where traffic spikes from health events or enrollment periods require demonstrated scalability.
See more →From the Blog
Load testing field notes — tools, techniques, and real results.
Know Your Scaling Ceiling
Book a free 30-minute capacity scope call with our load testing engineers. We review your architecture, traffic expectations, and upcoming scaling events — and scope the load test that will give you the data you need.
Talk to an Expert