
Why dotSource: Less Complexity, More Security
You receive results that not only read well in the test report, but also stand up in real-world operation. This enables you to prioritise measures on a sound basis and avoid misinvestment.
Questions, approvals and next steps come together in one place. This saves time, shortens processes and reduces unnecessary service loops.
When multiple service providers, departments and processes work together, clear coordination creates noticeable relief. This keeps your team able to act and helps decisions move forward more quickly.
Your platform should run quickly, stably and reliably without losing sight of your business requirements. That is why recommendations are based on your application, your operations and your specific framework conditions.
These Services Ensure Your Performance Remains Resilient
1. Select a test environment
It starts with the question of where the test will deliver the greatest insight. To answer this, you work together with the experts to review the current state, requirements and risks. This results in a clear approach, including the timing of the test and the right environment.
2. Scenarios & Scripts
Business-critical use cases are incorporated into realistic load scenarios. These form the basis for test scripts that reflect real-world usage and deliver reliable results.
3. Objectives & Metrics
Clear performance requirements provide direction. The focus is on the metrics that are relevant to your system: for example response times, throughput, error rates or concurrent user numbers.
4. Configuration & Execution
The test setup creates the foundation for meaningful results. Load generators, telemetry and monitoring work seamlessly together before a preliminary test validates the setup. The actual test then shows how your platform behaves under load.
5. Analysis & Actions
You will receive a structured assessment outlining the bottlenecks identified, prioritised optimisation recommendations and a realistic estimate of the work involved. This enables you to see immediately which steps will have the greatest impact both technically and commercially.
6. Optimise & Retest
Once you have approved it, optimisation and a follow-up review will take place. The retest demonstrates the progress made and shows clearly how strongly the measures improve stability, speed and resilience.
Online Consultation: 30 Minutes for Well-Informed Decisions
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Benefit from Cloud Expertise from a Single Source
Tools for Your Performance Testing
Scriptable load and API tests for realistic load profiles and use in CI/CD processes
Versatile load and performance testing for complex scenarios and different protocols
End-to-end performance testing and test automation in one integrated setup
Lightweight load testing for web applications and APIs in cloud environments
Browser-based performance measurement from the user’s perspective, with a focus on Web Vitals
Continuous front-end analyses for trends, comparisons and optimisation potential

What is Performance Testing?
What Performance Testing Reveals
Performance testing reveals how quickly, reliably and scalably digital platforms operate under real and simulated load. This enables you to identify where performance limits lie, which bottlenecks impair the user experience and which measures have the greatest impact.
Measuring and Ensuring Performance
To ensure the long-term performance of your applications, performance and load tests are used. A performance test examines the interaction between the frontend, backend and infrastructure. The focus is on metrics such as response time, throughput, error rate, as well as Web Vitals such as LCP, CLS and TTFB.
Realistic Load Depiction
A load test shows how your platform behaves under defined load profiles, for example under expected usage, short-term peaks or prolonged stress. This provides clarity on which load can be handled reliably and where critical thresholds are reached.
The Right Timing for Reliable Findings
Performance testing is worthwhile before go-live, before major releases, ahead of seasonal peaks or after technical optimisations. You receive a sound basis for decision-making before speed, stability or availability become business-critical.
Your Benefits: Why Performance Testing is Worth it
You assess risks, areas for action and investments not based on gut feeling, but on the basis of reliable results. Retests make progress visible.
Campaigns, releases and traffic spikes can be secured more reliably. This reduces outages and protects important digital processes.
Faster response times and more stable processes improve the customer experience and create better conditions for conversions and satisfaction.
You know the limits of your platform, can sensibly factor in reserves and deploy budgets more effectively.
Frequently Asked Questions about Performance Testing
What is Performance Testing?
Performance Testing shows how fast, stable and scalable your website, application or platform performs under real-world load. This helps you identify bottlenecks at an early stage and creates the basis for targeted optimisation.
When is performance testing worthwhile?
Performance testing is worthwhile before go-lives, releases, relaunches, campaigns and seasonal traffic peaks. It also provides a reliable basis for decision-making after technical changes or in the case of recurring performance issues.
Which KPIs are important in performance testing?
Important KPIs include response time, throughput, error rate and the number of concurrent users. Depending on the target state, Web Vitals such as LCP, CLS or TTFB may also play an important role.
What do I get with performance testing from dotSource?
You receive realistic load scenarios, a well-founded evaluation of your system performance, and concrete recommendations for action with prioritisation. This is usually followed by a retest to measure the impact of the implemented measures.
What is the difference between performance testing and performance engineering?
Performance testing makes weaknesses and load limits visible. Performance engineering goes a step further and helps to address root causes in a targeted way, implement optimisations and safeguard results over the long term.