Published: 26 Feb 2018

5 best practices for web application testing

Last Updated: 05 Jan 2024

Web applications are more than just simple information-based websites. The increase in size and complexities together with shorter development cycles in Agile and recurrent changes in requirements present numerous QA and testing challenges.

1. Web Application Testing
2. Web Application Testing Practices
3. What are the benefits of web application testing?
4. How to test Web Application?
5. What are the challenges faced in web application testing?
6. What are the tools for Web Application testing?
7. Conclusion

Web Application Testing

With all the impending issues, web app testing holds more importance than ever. However, testing a web application is not just an ordinary task, and depends on several factors such as compatibility across various browsers, application performance, user experience, user acceptance, ensuring proper security, etc.

The enterprises must deploy skilled testers to assess all aspects of the website across platforms, browsers, and devices. The testers must always implement web application testing best practices in order to produce accurate and reliable test results without increasing testing times.

Web application testing Practices:

1. Emphasis on Cross-Browser Compatibility Testing

With more and more users accessing websites on their mobile phones and tablets, enterprises are exploring more ways to make their websites mobile-friendly. Responsive web design makes the web applications deliver a rich user experience on every device. To ensure that the web application is able to work well on all browsers and devices, developers build responsive websites by using open web technologies like HTML5, CSS3, and JavaScript. Hence, it becomes important to perform cross-browser compatibility testing to ensure that the website is accessible on every available version of individual web browsers.

2. Evaluate the Application’s Performance Under Various Conditions

In addition to assessing the proper working of the application on all devices and browsers, it is also equally important to ensure that it does not crash under heavy loads. Sometimes minor flaws in the coding or design can affect the website’s performance adversely. Therefore, it is important to perform load testing and evaluate how the application performs under varying loads. There are various automation load testing tools available to accelerate load testing.

3. Choose the Right Parameters for Usability Testing

Usability and the user-experience of the web applications are of the utmost importance to keep the visitors engaged and convert them into customers. Hence, it is important to evaluate the usability of the applications based on most appropriate parameters. Performing usability testing on the application before its release is a best practice. Usability testing involves several parameters such as UI design, speed, navigability, content readability, and accessibility.

4. Validate all Security Issues with Security Testing

Underestimating the significance of web application security is a ticking time bomb. Even a single vulnerability can lead to a massive data breach that can shake even the largest of companies down to its grounds, causing a negative impact, substantial financial consequences, and the loss of public trust. It is therefore imperative to ensure that the web application is thoroughly tested on the security front. A number of strategies that should be incorporated into the web application security testing are as follows:

• Defining coding standards and quality controls

• Creating strategies based on both internal and external challenges

• Using industry standards as a benchmark

• Implementing a cross-functional approach to policy building

5. Integrate Exploratory Testing in the Software Development Lifecycle

Exploratory testing reduces testing time and discovers more defects. As a regular practice in the software testing approach, testers write and execute test cases simultaneously. When failing to understand the shortcomings of exploratory testing, they are surrounded by more defects. By integrating exploratory testing with other black-hat and white-hat software testing techniques, the limitations of web app testing can be easily overcome. The integration can help in producing more reliable test results while reducing the testing time significantly.

How to test Web Application?

There are six important steps to test a web application:

1. Functionality testing:

This step ensures that the functionalities of a web application are properly functioning or not. Functional testing takes place in the source code.

Functionality testing includes:

  • Determining the data input and entry
  • Test case execution
  • Functions need to be properly identified because the software runs effectively through the integration of functions
  • Actual results must be analysed

2. Usability testing:

This testing type focuses on how user experiences while using a particular web application. Efforts are put in to ensure that the application is built in-line with user needs. This testing method makes it a point to see that a user is able to easily navigate through the various functions of an application. The content that is displayed in the web application must also be clearly visible.

3. Interface testing:

This testing method ensures that the three main components of a web application which are web server, web browser and database are running harmoniously. This testing type checks whether there is any interruption while the data is being transferred. Upon that, the communication taking place between various interfaces is also thoroughly checked.

4. Compatibility testing:

This testing methodology ensures that a particular web application is compatible with all browsers. Compatibility testing takes place at three levels which are browser compatibility, operating system compatibility and device compatibility.

5. Performance testing:

In here, a specific web application is tested in terms of how better it can perform under stress conditions and heavy load. How the application is able to perform under different internet speeds, networks and browsers are also worked upon. Stress testing is one form of testing which is used to determine what amount of stress a web application can go through until it ceases to function. Also, how an application performs when it is running through various hardware configurations and what are the mechanisms that need to be strategized in order to prevent the application from crashing. All the above-mentioned aspects are thoroughly scrutinized and tested under the scope of performance testing<.

6. Security testing:

The final and most important step of testing a web application is Security testing. When a web application is being built, there is a lot of data that is being used and stored. Some of this data can be sensitive and needs to be protected at any cost, failure of which can cause a lot of technical issues for a web application to function properly. In order to fully secure these types of mission-critical data, security testing is implemented.

What are the benefits of web application testing?

Compatibility across browsers:

The practice of web application testing helps the applications to be compatible across all web browsers. Every user uses different browsers while surfing websites. The practice of web application testing effectively helps the apps to function the same for every user using different browsers.

Improves website performance:

The methodology of web application testing successfully helps to overcome the slow app performance. Applications with slow performance are not the choice for any user and Google even. Web app testing helps to resolve the load time delays caused due to the graphics, code, etc. and maintains a quality application.

Secures App from vulnerabilities:

Security is one of the important concerns for every application. Day-by-day the rate of website hacks is excessively increasing, so there is an immediate need for every small and large enterprises to practice the web app testing to ensure that the applications are free from the different kinds of threats.

Ensures high quality of the application:

The end-to-end testing practice effectively helps in enhancing the performance and functionality of the app. And, this way of testing helps to find and resolve the bugs at earliest. Thus, a high-quality app will be achieved before the release.

Reduces the Time and Cost Consumption:

The end-to-end testing practice through automation tools reduces the occurrence of errors and the performance of repetitive test cases. This will help the enterprises to achieve quality results with reduced time and cost.

What are the challenges faced in web application testing?

Challenge in interacting with Firewalls:

There are several instances where a firewall or a port can block a web application due to the issues of security certificates. Therefore, to avoid these scenarios, it is mandatory to test the application across various firewalls.

Challenge for validating Web Services:

The modern web applications are prominently depending on the web service layers such as JSON/REST or XML/SOAP to exchange data between systems or applications. So, the need for testing these web services has become huge, but the web automating testing tools are not the ones to tackle the services. Hence, testing web services is one of the important challenges faced by the teams.

Challenge to maintain consistency across browsers:

Interactive and Scalable web applications are always the preference of any user. If any inconsistency is experienced by the user while surfing on different browsers, then this can become a huge negative affecting the enterprise brand and growth. Hence, while performing usability testing, the developers need to monitor the interactivity and scalability of the app across different browsers by using different hardware.

Challenge to overcome performance issues:

An application with slow loading time is not a choice for any user and this drive affects the enterprise’s brand and app future. Hence, to overcome this challenge, developers should find the reasons influencing performance testing such as extending application features, interoperability, and integration issues, etc.

Challenge to secure app from data breaches:

Cyber threats are exceptionally increasing in number and affecting the user’s sensitive data which is available in the apps. In order to avoid data breaches and loss of information, it is important to regulate security testing practices. This will help to avoid the issues related to DDoS attacks and other cyber attacks and if there are any found, they can be resolved at the earliest.

What are the tools for Web Application testing?


Selenium is one of the leading open-source web automation tools. It helps to perform automation across different devices and browsers. Also, there are several options to choose the language for writing test scripts such as C#, Python, Java, PHP, JavaScript, etc.


This is an easy-to-use functional test automation tool. It allows in creating and maintaining automated regression tests on various devices. This tool is efficient to run 1,500 tests in parallel across remote test environments.


This is a modern cloud-based test automation tool that is designed for helping QA and development teams. This tool doesn’t limit to run test cases or projects.


Zephyr is also a top tool providing end-to-end solutions for many small and big enterprises. A one-click can enable to integrate with Jenkins, JIRA, Bamboo, etc. Also, it provides a good number of deployment choices for the user.

Robot Framework:

This is an open-source tool with an test automation framework. It helps to drive a keyword-driven approach for acceptance test-driven development and acceptance testing.

API Testing challenges


Every application whether web, mobile, or desktop-based, is experiencing more users. Considering the device variety, the ease of access has grown fundamentally over the past few years. With so much going on in the software domain, there is no way that testing will get easier. TestingXperts follows a comprehensive QA strategy that handles the unique requirements and challenges associated with web application testing. Connect with our experts to improve the overall user experience of your application with our testing strategies.

Related Queries on Web Testing

Q1. How can I test any Web application?

Ans. Testing a web application is not just an ordinary task, and depends on several factors such as compatibility across various browsers, application performance, user experience, ensuring proper security, etc.

Q2. What are Web testing tools?

Ans. Selenium is one of the leading open-source web automation tools. Others include TestComplete, Qase, Zephyr.

Q3. How is Web Testing different than application testing?

Ans. The practice of web application testing effectively helps the apps to function the same for every user using different browsers.

Q4. What are the different types of testing?

Ans. There are various types of software testing, you can