Web Application Testing Services

Need to ensure your web application works flawlessly before the release? Hire web app testing professionals with Relevant to minimize the risk of issues for a smooth launch.

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Client testimonials

«We now have a core team of engineers at Relevant who work for us full-time and are supplemented by 4 or 5 engineers with different skillsets when and if required.»

Paul Carse
CTO and Co-founder of Life Moments

“Working with you guys has been fantastic. The level of expertise of your development team is as good as the people that we get in the UK. You’ve got a fantastic talent base of programmers. It’s more challenging to find people of that quality in the UK.”

Cassian Harrison
Co-founder of Splink Industries and My Theory Test App by James May
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Web app testing services we provide

Usability testing

During the usability testing, your product's end-users can try the solution and provide feedback. This type of testing provides a great overview of how your web app works and helps to see its operational and functional aspects from a new perspective.

Functional testing

Functional testing helps you check if every function of your web application works as required. During this type of web app testing, you compare the real output of each function to the expected one.

Performance testing

Performance testing ensures your product operates well under load. These tests help you check the web app's speed, stability, and responsiveness. This way, you can detect if there are any bottlenecks.

Compatibility testing

This type of non-functional testing allows you to see if the web application works well in different environments. It will ensure your solution runs smoothly on various operating systems and devices.

Security testing

Security testing detects security flaws in the system. This type of testing prevents data leaks and ensures your and end-user information is protected. Security testing helps a lot with risk assessment and detecting the vulnerabilities in your app.

Accessibility testing

Accessibility testing allows you to see if the web app can be used by as many customers as possible. With its help, you can understand whether your product is accessible for people with disabilities like hearing, cognitive, and vision conditions.

We also provide:
  • • Application Testing Services
  • • Manual Testing Services
  • • Website Testing Services
  • • Software Testing Consulting
  • • Cloud Testing Services
  • • Web Application Penetration Testing
  • • Integration Testing
  • • Regression Testing
  • • Android App Testing
  • • iOS App Testing
  • • Test Coverage

Why is Relevant a good choice for web application testing services?


Agile methodology

We plan our workflow using the Agile framework, which helps us ensure effective project completion and timely, high-quality results in web app testing.


Dedicated project manager

With Relevant, you get an assigned project manager who will focus on your product and help quickly resolve any problems you might face.


80% employee retention rate

Our experts in web application testing services work in a friendly, motivating environment. That's why they are always willing to take on new projects that boost their growth and expertise.


9/10 client satisfaction score

One of our key secrets to success is a customer-centered approach. We value open communication and carefully consider your needs to ensure the highest level of client satisfaction.


92% of senior and middle engineers

To ensure top-quality results, we hire the most experienced professionals from all over the world with the relevant skills needed to test your product.


Risk handling

Preventing risks is one of the essential aspects of web app testing services. We will lower the functional and operational risks your product may face after the release.

Success cases

Optimizing the service industry's tipping process
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Modernizing an online radio platform
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Developing a SaaS platform that assists UK homebuyers
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What is web application testing?

Web app testing is the QA practice that allows you to define whether your digital product functions well under the given requirements. Web application tests aim at detecting and handling issues in functional and non-functional aspects such as performance under workload, compatibility with multiple devices or operating systems, security systems, and many others.

Why is web app testing a necessary thing to do?

Web app testing is what every company should run before releasing a new product. It helps ensure the high quality of your solution, its smooth performance, and its usability. Plus, web app testing allows you to see if there are any flaws in the security systems. Therefore, your users are less likely to suffer from hacks and data leaks.

How do you run a web application test?

We have a well-structured workflow that we follow to ensure high-quality results. Our team starts with analyzing your needs and requirements and detects what types of tests to run. We agree on deadlines, finalize the budget, and get to work. Our experts run all the necessary tests and monitor the required metrics. Ultimately, we provide detailed reports and recommendations.

What are the most common issues you can detect while testing a web app?

During web app testing, you can detect some common mistakes or problems. The most popular ones include poorly-written code, inadequate load distribution, unmanaged data growth, unoptimized databases, faulty third-party tools, poor network connectivity, unchecked default configurations, and traffic spikes.

What is the difference between mobile app testing and web app testing?

While running web application tests, you ensure it's 100% functional across all browsers and devices you want your digital product to run on. Mobile app testing detects compatibility issues within a native or hybrid mobile application across different Android and/or iOS devices.

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Do you know that we helped 200+ companies build web/mobile apps and scale dev teams?

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