Proven at Real-World Scale
Testvox has load tested an LMS for 35,000+ concurrent learners, a Shopify storefront for 20,000+ concurrent shoppers and a live bidding platform for 5,000 simultaneous bidders.
Performance Testing Services Company
Keep your application fast and stable under real-world traffic, from launch day to peak season, with Testvox load, stress and scalability testing
35000+
Concurrent Users Load Tested
Challenges We Solve
Performance Problems We Help You Catch Early
An application can pass every functional test and still slow down or crash when real users arrive. Heavy traffic, slow databases, third-party APIs and poor infrastructure planning often show up only under load. Performance testing finds those bottlenecks before your customers do.
- 1 Preparing for Product Launches & Marketing Campaigns
- 2 Handling Seasonal Sales, Exam Days & Traffic Spikes
- 3 Slow Page Loads & API Response Times
- 4 Database & Server Bottlenecks
- 5 Rising Cloud Costs & Unstable Infrastructure at Scale
- 6 Validating Performance After Major Releases or Migrations
Simulate thousands of concurrent users, ramping load in phases (25%, 50%, 75%, 100%) to find the exact breaking point.
Monitor response times, CPU, memory and throughput live through real-time performance dashboards.
Correlate errors with server logs to trace every failure back to its root cause.
Share findings with your development and DevOps teams, then retest after every fix.
Performance Testing Services
Load, Stress & Scalability Testing for Web, Mobile & APIs
Load Testing
Measure response times, throughput and stability under your expected user load, ramped in phases to see how the system behaves as traffic grows.
Stress Testing
Push your application beyond peak traffic, up to 2x and more, to find the true breaking point and see how it recovers after failure.
Capacity & Scalability Testing
Find out how many users your current infrastructure can support and where to scale before traffic outgrows it, without overspending on cloud.
Soak & Endurance Testing
Run sustained load over long periods to uncover memory leaks, slow degradation and resource exhaustion that short tests miss.
Failover Testing
Validate that your system switches to backup servers and recovers cleanly when a component fails, so users see no disruption.
API Performance Testing
Test response times and error rates of your APIs and third-party integrations under concurrent requests, across web and mobile backends.
Performance Testing Methodology
How Testvox Executes Performance Testing Projects
Our performance testing process is structured but flexible, moving from scripting to execution and analysis in about two weeks without slowing your release.
Model the Workload
We map your user journeys, peak hours and target load to design realistic test scenarios.
Run the Load Tests
We script the scenarios and ramp load in phases while monitoring servers, databases and APIs live.
Analyse, Report and Retest
We pinpoint bottlenecks, share clear recommendations and retest after every fix until performance is stable.
Why Choose Testvox
Trusted Performance Testing Partner for Growing Product Teams
35000+
Concurrent Users Load Tested
167500+
Transactions per Hour
9+
Years Expertise
35000+
Concurrent Users Load Tested
167500+
Transactions per Hour
9+
Years Expertise
9+ Years of Software Testing Expertise
With over 9 years of experience in software quality assurance, Testvox has helped startups, SMEs and enterprises deliver fast, reliable digital products across EdTech, eCommerce, FinTech, SaaS and other industry domains.
Proven Performance Testing Methodology
Testvox's structured process combines real-usage workload modelling, phased load execution, live monitoring with JMeter, Grafana and Splunk, and actionable reporting to deliver reliable results.
4.5/5 (200+ customers)
Frequently Asked Questions
Find answers to common questions about our testing services, processes, tools, engagement models, and how we help ensure the quality, performance, and reliability of your applications.
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Performance testing checks how fast, stable and scalable your application is under expected and peak user load. It helps you avoid crashes, slowdowns and lost revenue when traffic grows.
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We offer load testing, stress testing, capacity testing, failover testing and soak/endurance testing, along with API performance testing, selected based on your goals.
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We have load tested an LMS for 35,000+ concurrent learners, a Shopify storefront for 20,000+ concurrent shoppers, and a live bidding platform for 5,000 simultaneous bidders. We scale the load to your expected traffic and beyond.
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Yes. We recommend a staging environment that mirrors production, but we have also tested live production systems during low-traffic windows so real users weren’t affected.
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Our reports pinpoint the root cause of each bottleneck with clear recommendations. We work alongside your developers and retest after every fix until performance is stable.
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We offer 1-day onboarding. Most projects move from scripting to execution and analysis in about two weeks, depending on scope.
GET IN TOUCH
Talk to an expert
Let us know what you’re looking for, and we’ll connect you with a Testvox expert who can offer more information about our solutions and answer any questions you might have?
