Belitsoft > Software Testing Services & Quality Assurance > Performance Testing Services

Performance Testing Services

Our experts will provide you with top-notch performance testing services to ensure you get a high-quality product. Let specialists determine how fast, reliable, usable, and responsive your app is under any workload.

Belitsoft has experience as a performance testing company that aims to deliver optimized, efficient, and bug-free software to clients worldwide. Our quality assurance team monitors your product during all production stages to ensure it provides the best user experience.

We apply different testing methodologies, including automated and manual approaches, to bring you a flawless application. The team provides QA services with both third-party products and custom software developed by Belitsoft.

Outsourcing performance testing is the most efficient way to reduce costs and speed up your solution’s development. We deliver you an ideal application by following the software testing best practices.

With over 16 years of experience in software testing, our qualified team of test engineers can detect any issue in the shortest time. Their rich background helps them think out of the box, ensuring the software gets maximum performance.

years in business

Types of Performance Testing

Load testing

We check software performance under real-life load conditions when multiple users access it simultaneously. It allows verifying how many concurrent connections your app can handle while providing a fast response. This helps understand the product’s limits, detect bottlenecks, and find the elements causing freezes.

Stress testing

We verify the reliability & stability of your system under extreme conditions. The process includes checking whether it performs efficiently even when the load exceeds maximum capacity. This unlocks new ways for optimization and improvement.

Scalability testing

Belitsoft QA team checks whether your system can grow as the load increases. This is a critical step for fast-growing products that aim to get a large audience in a short time. Our team creates a report that helps you plan future growth and optimize investment in hardware.

Stability testing

Our team checks your system’s performance in different environments. The main goal is to ensure the app can function effectively for extended timeframes. As a result, we identify the risk of downtime and help you plan maintenance activities.

Volume testing

We load the system with huge amounts of data to identify data loss, response time, and general performance. This helps us ensure the software is ready for real-world use, and your audience won’t experience any bugs.

Soak testing

The team creates an environment with a significant load to check the app’s performance during an extended period. If the app sustains continuous load with no errors, we may be sure it will remain stable in real-life conditions.

Spike testing

We apply sudden increases and decreases in load on the system to determine its behaviors during such abnormal conditions. This helps us assess performance issues, maximum load, and potential bugs. Thus, your app will be prepared for any event!

Tools we use for Performance Testing

Belitsoft’s performance testing services apply cutting-edge tools that help us ensure your software is reliable & well-optimized. This helps us fully view your system’s performance and create detailed reports. Here are the tools we use:

  • JMeter;
  • Locust;
  • Gatling;
  • K6.

Why do you need Performance Testing?

Imagine an e-commerce app that typically serves 1000 customers a day. During the Black Friday sale, there were 10,000 customers, resulting in the application crashing. As the owners didn’t use performance testing, they weren’t aware of their product’s limits.


Performance testing assesses your product’s behavior in various situations and helps prevent crashes & errors. It shows the app’s limitations, providing valuable information for development. As a result, you get a stable system that can withstand any number of users.

Why choose Belitsoft as your Performance Testing Company?

Impeccable reputation

Belitsoft’s rich experience and background help us provide flawless products with maximum efficiency. We’ve been on the market for 16+ years. The best proof of our company’s expertise is the 20+ client reviews with an average score of 4.9/5 on Clutch.

Low attrition rate

Our company’s leading practices keep specialists engaged in projects for 3+ years on average. You get a reliable performance testing team that knows your product from tip to toe. As a result, you save resources by avoiding extra onboarding processes and getting a dedicated product team.

Domain expertise

Belitsoft’s service offerings cover EdTech, FinTech, E-commerce, HealthTech, and multiple other areas. We have a vast portfolio of solutions for various cases. Knowing the peculiarities of each industry helps us conduct high-quality performance testing to provide error-free products.

Frequently Asked Questions

Although there are dozens of open-source tools on the web, JMeter and Gatling are considered to be some of the best for performance testing. These are highly capable tools with high performance and excellent maintainability. Belitsoft uses them along with multiple other software to provide efficient applications.
A performance test provides detailed information regarding an application’s speed, stability, scalability, and general capabilities. The data helps stakeholders understand which elements require improvement to keep up with the market. Thus, you can build a reliable app.
Performance testing is essential to ensure your product is always accessible and stable. This helps you take the right measures to avoid having your software crash during high load. Thus, testing is an investment in your application’s quality and reliability.

Portfolio

Offshore Dedicated Team of 100 QA Testers and Developers at 40% Lower Cost than in Israel
Offshore Dedicated Team of 100 QA Testers and Developers at 40% Lower Cost than in Israel
Our client is an Israeli high-tech company. They’ve grown into a leading global provider of innovative network intelligence and security solutions (both software and hardware). Among their clients, there are over 500 mobile, fixed, and cloud service providers and over 1000 enterprises.
Manual and Automated Testing to Cut Costs by 40% for Cybersecurity Software Company
Manual and Automated Testing to Cut Costs by 40% for Cybersecurity Software Company
Belitsoft has built a team of 70 QA engineers for performing regression, functional, and other types of software testing, which cut costs for the software cybersecurity company by 40%.
Software Testing for Fast Release & Smooth Work of Resource Management App
Software Testing for Fast Release & Smooth Work of Resource Management App
The international video production enterprise Technicolor partnered with Belitsoft to get cost-effective help with software testing for faster releases of new features and higher overall quality of the HRM platform.

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