10 Web testing Interview Questions and Answers for qa engineers

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1. What is your experience with web testing?

Throughout my career, I have had significant experience testing web applications. In my previous role as a Software Tester at XYZ company, I was responsible for testing the functionality, usability and security of the company’s web-based platform.

  • I designed and executed over 500 manual test cases, which resulted in identifying over 200 defects in the system.
  • I also developed and executed automated test scripts using Selenium WebDriver and Java programming language, which increased the efficiency of testing and reduced the testing time by 30%.
  • Additionally, I carried out performance testing of the web application using JMeter, and was able to identify and resolve bottlenecks that increased the web application’s response time by 20%.

In my previous experience at ABC company, I used various performance testing tools such as Apache JMeter and Gatling for stress and load testing. I was able to conduct stress tests on the web application, simulating up to 1000 concurrent users, which ensured that the application could handle peak loads efficiently without downtime.

Overall, my extensive experience in web testing has allowed me to develop a robust understanding of best testing practices, tools and technologies. I am confident that my wealth of experience will help me make a significant contribution to any team that requires my services.

2. What tools have you used for web testing?

During my career as a web tester, I have used a variety of tools to ensure that websites are fully functional and user-friendly. Some of the most valuable tools I have used include:

  1. Selenium WebDriver: One of the most popular web testing tools, Selenium WebDriver enables me to automate tests and perform them across multiple web browsers. I have used this tool extensively in my previous role and have successfully improved website speed and functionality by identifying issues and quickly pushing out fixes.
  2. JMeter: Although mainly used for performance testing, JMeter has also been extremely useful for API and functional testing. The tool helps me simulate real-world load scenarios, and I can easily identify website bottlenecks and find solutions to improve website speed and user experience.
  3. BrowserStack: This tool provides access to real devices and browsers for testing, enabling me to simulate a range of devices and operating systems. During one testing cycle, using BrowserStack, I was able to quickly identify and fix a critical issue that was preventing users on certain mobile devices from accessing the website at all, which ultimately saved the company significant revenue loss.
  4. Postman: This tool has been valuable for managing and testing APIs. I find that it helps me quickly test endpoints and manage responses, which reduces the amount of manual work required and helps me identify any possible issues before they become major problems.

Through the use of these and other testing tools, I have been able to identify and resolve issues quickly, improve website speed and functionality, and enhance overall user experience for clients.

3. What kind of automation frameworks have you worked on?

During my previous role at XYZ Company, I worked extensively with both data-driven and keyword-driven automation frameworks.

  1. For a project that involved testing an e-commerce website, I implemented a data-driven framework using Selenium WebDriver with Java. This framework allowed us to easily execute multiple test scenarios in one go, significantly reducing the overall testing time. As a result, we achieved a 25% reduction in the time it took to complete the testing phase.

  2. For a web application that involved processing large amounts of data, I built a keyword-driven automation framework from scratch using Python and Robot Framework. This allowed us to create reusable test cases that could be quickly modified as needed. This resulted in 20% faster test execution time and an 18% reduction in defects found in production.

  3. In addition to these frameworks, I have also worked with Behavior-driven Development (BDD) frameworks like Cucumber with Ruby. Using this framework, we were able to create executable documentation that outlined the behavior of the application in plain English. This improved communication between our team and our stakeholders, resulting in more accurate and well-aligned testing efforts.

Overall, I believe that the automation frameworks I have worked on have significantly improved the efficiency and effectiveness of the testing process for the projects I've been a part of.

4. How do you ensure that you have tested a web feature comprehensively?

One of the primary goals of web testing is to ensure that all features are comprehensively tested. To achieve this, I follow a systematic approach that involves the following steps:

  1. Understanding requirements: I start by reading through the requirements and user stories to ensure that I have a clear understanding of the expected behavior of the web feature.
  2. Test planning: With a detailed understanding of the requirements, I create a comprehensive test plan that outlines all the tests that need to be executed and the expected results.
  3. Exploratory testing: I perform exploratory testing to identify bugs, defects or inconsistencies that were not detected during scripted testing.
  4. Automated testing: To save time and increase efficiency, I leverage various test automation tools and frameworks, such as Selenium and Cypress, and create automated test scripts that run faster and offer more comprehensive coverage.
  5. Regression testing: I conduct regression tests after each release, to ensure that previously working features have not been impacted, and ensure that there is no unintended impact on other parts of the web application.

The results of this approach are striking. In my previous role, I was responsible for testing a new feature in a web application that involved an online chat function for customer service. Following my comprehensive testing approach, I identified 83 issues, including 17 major bugs, 36 minor bugs, and 30 cosmetic issues. We were able to resolve all of these issues before launching the feature, which contributed significantly to customer satisfaction and lead to an 18% increase in user engagement.

5. Can you explain your process for identifying and documenting defects in web applications?

As a web tester, identifying and documenting defects in web applications is a crucial part of my job. To ensure that no defects go unnoticed, I follow a rigorous process that involves the following steps:

  1. Proactive Testing: I begin by conducting a thorough test of the web application's features, functionality and user interface. This includes testing all the input fields, buttons, links, forms, and pages to identify any discrepancies, inconsistencies, or bugs that may impact the application's performance or user experience.
  2. Reactive Testing: In case any issues crop up, I immediately take a screenshot of the error and report it to the development team. Tracking the errors and following up on the updates helps me ensure that they are fixed on a timely basis. I conduct reactive testing post-fix to check that the error is completely gone and document the steps taken to resolve it.
  3. Bug Tracking: To document the defects found during testing, I utilize different bug tracking tools such as JIRA, Trello, or Redmine. I take screenshots of the error and provide a detailed description of the type, frequency, and severity of the problem. This information helps the development team troubleshoot and resolve the issue with ease.
  4. Data-Driven Testing: I use different test data sets to comprehensively test the application's functionality, usability, and scalability. This includes developing a range of test case scenarios to reflect how users would interact with the web application in the real world.
  5. Test Automation: I utilize test automation tools such as Selenium, Appium or JMeter to speed up testing and ensure accurate results. Automating web testing allows me to easily generate reports and capture defects in real-time, reducing the scope for missed errors and improving the overall efficiency of my testing process.

Using this comprehensive approach to identifying and documenting defects has helped me ensure that every issue is addressed, tested and resolved before the web application goes live. I take immense pride in being a contributing member of the development team by spotting unobserved errors and delivering optimum web applications.

6. What is your approach for testing responsive web design?

  1. Firstly, I ensure that the design is following the breakpoints as per the requirement.
  2. I test the layout on different devices such as desktops, tablets, and phones, as well as various screen sizes, and resolutions.
  3. I verify that the text, images, and other UI elements are adjusting in size and presented correctly on all screen sizes.
  4. I check for horizontal scrolling or overlapping elements that could hinder the user's experience by using tools such as BrowserStack, which provides emulators for a plethora of devices and browsers.
  5. I perform cross-browser testing of the responsive design in different web browsers such as Chrome, Firefox, Safari, and Edge etc.
  6. I check for correct behavior of the website when using an accessibility feature or when zooming-in the website on different browsers.
  7. I also test the website's speed and performance on each device to ensure the responsive design is not affecting speed.
  8. Finally, I document all discovered defects and report them to the development team so that they can be rectified accordingly. I keep track of the defects until they are fixed and confirmed through re-testing.
  9. By using these testing techniques, I have ensured that various responsive web designs are performing according to the project's specifications. During my time at XYZ Inc., I have reduced the responsive design defects by 20%.
  10. Furthermore, our website's bounce rate decreased by 15% due to improved responsive design testing, resulting in an increase in the number of users staying on the site and engaging with the content.

7. Can you describe how you have tested web applications with different browsers and devices?

During my previous experience as a web tester, I ensured that all web applications were compatible with a variety of browsers and devices. To test this, I used multiple tools like BrowserStack and Sauce Labs, which allowed me to check the web application on multiple browsers, including Chrome, Firefox, Safari, and Edge.

  1. Using BrowserStack which is a cloud-based web and mobile testing platform, I was able to test compatibility across a variety of devices with different screen sizes, operating systems, and resolutions. This gave me accurate results on how the application performed on mobile devices like iPhones, Samsung Phones, Tablets and many more. I found issues regarding resolution and touch events, which were quickly addressed by the development team. This helped to ensure that the web application was responsive and user-friendly despite the device a user is using to access it.
  2. In addition, I used Sauce Labs, which enabled me to run tests across different browsers and operating systems. I had real-time access to the browsers to test and to change the configurations of the tests to simulated and visualized browser environments. This gave me broader coverage for cross-browser testing, which helped to uncover critical defects in the web application. I found multiple bugs that were browser-specific, e.g. incorrect alignments, and unresponsive links, which were also fixed by the development team. These tests were vital to ensure that the web application was accessible across different devices, as over 60% of the total internet search is done in mobile devices with different browser rendering engines.

Overall, using these tools helped me effectively test for compatibility across multiple browsers and devices, which allowed our web applications to run seamlessly on each platform. I believe that this experience would make me a valuable asset to your organization as a professional web tester in 2023.

8. How do you keep up-to-date with the latest web technologies and trends?

As a web testing professional, I understand the importance of being up-to-date with the latest web technologies and trends. Here is how I keep myself informed:

  1. Online courses and webinars. I regularly attend online courses and webinars to keep myself up-to-date with the latest web testing techniques and technologies. For example, I recently attended a webinar on "Testing Strategies for Serverless Applications" hosted by AWS. It helped me understand the best practices for testing serverless applications.
  2. Reading blogs and technical articles. I follow top blogs and websites that are known for publishing high-quality technical content related to web testing. Some of them include Guru99 and Softwaretestinghelp. Reading these articles helps me stay informed about the latest trends and best practices in web testing.
  3. W3C standards. I regularly refer to the W3C standards (World Wide Web Consortium) to ensure that my testing approach is in line with the latest web standards. This helps me ensure that our web applications are compatible with different browsers and devices.
  4. Networking and attending conferences. I attend industry conferences, such as the STARWEST Conference, where I have the chance to interact with other web testing professionals and exchange ideas on the latest trends and techniques. This has helped me gain insights into the latest advancements in web testing.

As a result of these efforts, I have been able to stay up-to-date with the latest web technologies and trends. For instance, in my previous work, I suggested implementing TestCafe rather than Selenium WebDriver based on its lightweight-API for web testing.

9. What is the most challenging problem you have encountered when testing web applications?

During my time as a web application tester, I encountered a challenging problem while testing a new e-commerce website. The website was designed to allow customers to purchase products online and complete their transactions with ease. My primary responsibility was to ensure that the website's payment gateway was secure and worked flawlessly.

  1. Problem: The first issue I encountered was the payment gateway's speed; transactions were taking much longer than the average checkout process. This was a significant concern because it would have had a negative impact on the user experience.
  2. Solution: To solve the problem, I employed different methods of testing, including load testing and stress testing. Load testing allowed me to replicate a large volume of transactions to identify and isolate the issue. Additionally, stress testing enabled me to identify how many transactions the payment gateway could handle at any given time.
    • Data: After conducting several load tests and stress tests, we were able to determine the optimal number of transactions that the payment gateway could handle, which led to a 27% reduction in the checkout process duration.
  3. Problem: Despite the speed improvement, I still encountered issues related to payment failures, which were frustrating for customers.
  4. Solution: To address the payment failure issue, I started by analyzing the website's code and configuration settings. I identified that the payment gateway's SSL certificate was expired and causing payment failures for some customers. I contacted the development team, and they rectified the issue by replacing the expired SSL certificate.
    • Data: After the SSL certificate was updated, payment failures decreased by 85%, which led to an 18% increase in successful transactions.

Overall, I learned a great deal during this project and how to ensure a quality end product. Identifying issues early in the testing phase and working collaboratively with the development team to address them played a significant role in our success. Communication between teams and understanding the product's goal is critical is an essential part of testing web applications.

10. How do you collaborate with developers, product managers, and other stakeholders to ensure successful delivery of high-quality software?

Collaboration is crucial when developing high-quality software. I've found that the key to successful collaboration is communication and transparency. Here are some examples of how I work with developers, product managers, and other stakeholders:

  1. I participate in daily stand-up meetings where I discuss progress on testing and any roadblocks I've encountered. This ensures that everyone is aware of the current status of the project.
  2. I work closely with product managers to understand the requirements and business goals for each feature. This helps me design test cases that cover all the necessary functionality.
  3. I provide continuous feedback to developers throughout the development process. This ensures that bugs are caught early and that code is tested thoroughly before it is merged.
  4. I use project management tools such as Jira or Trello to track testing progress and to ensure that stakeholders are aware of any issues that arise.
  5. I conduct regular retrospectives to discuss what went well, what didn't go well, and how we can improve our processes. This helps us identify areas for improvement and ensures that we continue to deliver high-quality software.

By collaborating effectively with all stakeholders, I have been able to ensure the successful delivery of high-quality software. For example, in my previous role, I collaborated with a development team to test a new feature for an e-commerce platform. By working closely with developers and product managers, we were able to identify and fix several critical bugs before the feature was released. As a result, the feature was well-received by users and led to a significant increase in revenue for the company.


Congratulations on getting familiar with the top 10 web testing interview questions and answers for 2023! However, the preparation for landing your dream job does not end here. Crafting an excellent cover letter is one of the next critical steps to showcase your passion and experience in QA engineering. Check out our guide on writing a captivating cover letter for QA engineers to help you stand out from the crowd. Additionally, having an impressive resume is crucial to catch the attention of hiring managers. Follow our guide on writing a resume for QA engineers to make sure your resume is polished and attractive. Finally, if you're ready to search for your next remote QA engineer job, Remote Rocketship has you covered. Visit our job board for remote QA engineer positions and take control of your career. Good luck with your job search!

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