Crucial Points to Consider in Your Cross-Browser Testing Checklist

cross browser testing checklist

In today’s digital era, websites are the backbone of businesses. It is essential to ensure that they are functional and accessible across different web browsers. Thus, cross-browser testing becomes a crucial aspect of website testing.  It is essential to conduct cross-browser testing to ensure a seamless user experience. But with the increasing number of web browsers and versions, cross-browser testing is becoming more complex and challenging.  In this blog, we will discuss what is browser compatibility testing, the importance of cross-browser testing, the checklist for website testing, and how to do cross-browser testing

What is Compatibility Testing & Cross-Browser Testing?

Compatibility testing, also known as cross-browser testing. It is a type of software testing that ensures an application can function and perform as intended in different environments. It aims to verify that the application can operate on various hardware, operating systems, web browsers, and devices. Browser compatibility testing ensures that the application can deliver the same level of functionality and user experience across different platforms. A browser compatibility check can be performed manually or through automated tools. And browser compatibility testers can perform it using a variety of tools and techniques.

Importance Of Cross-Browser Testing

Here are some of the main reasons why cross-browser testing is essential to include:

  • Browser compatibility testing ensures that an application functions as expected across different browsers, operating systems, and hardware configurations.
  • Without cross-browser testing, there is a risk that an application may not work as intended. This may lead to a poor user experience, lost revenue, and damage to the brand’s reputation.
  • By identifying and addressing compatibility issues, we can improve user engagement, increase conversions, and ultimately drive business growth.
  • With the increasing number of browsers and devices available in the market, cross-browser testing has become even more critical. As it is necessary to ensure optimal performance across a variety of platforms.
  • Automated browser compatibility testing tools are available that can save time and effort in identifying and resolving compatibility issues. This will make it easier for developers to focus on other aspects of application development.

Overall, cross-browser testing is an essential step in the web development process. This helps to ensure the success of an application and deliver a seamless user experience across different browsers and platforms.

Example of Compatibility Testing

An example of cross-browser testing can help to illustrate the importance of this type of testing. Suppose a web development team has designed a new e-commerce website that looks and functions perfectly on Google Chrome. However, without cross-browser testing, they may not realize that the website is slow to load on Safari. They might also miss that some features are not working as intended on Firefox. This can lead to a poor user experience and lost revenue. By performing cross-browser testing, the development team can identify these issues and make the necessary adjustments. This will help to ensure the website works seamlessly across different browsers. This can include testing the website’s layout, functionality, and performance on various browsers and devices to ensure optimal user experience. Through compatibility testing, businesses can ensure that their web applications work as intended. They can also ensure that they deliver a positive user experience, ultimately contributing to their success in the market.

Browser Compatibility Testing/Website Testing Checklist

A comprehensive checklist for cross-browser testing can help testers identify and fix compatibility issues, ensuring a seamless user experience. Here is various checklist for website testing & cross-browser compatibility testing:

Checklist for Visual Cross-Browser Testing:

  1. Check for the website’s overall appearance, layout, and design on different web browsers.
  2. Verify the website’s font size, color, and style consistency.
  3. Ensure that images, videos, and animations are displayed correctly.
  4. Confirm that the website’s graphics and icons are rendered correctly.
  5. Test the website’s responsiveness and adaptiveness to different screen sizes and resolutions.
  6. Verify the website’s CSS properties and their compatibility with different web browsers.

Checklist for Functionality Cross-Browser Testing:

  1. Verify that all links and buttons work correctly across different browsers.
  2. Check that forms and input fields work correctly across different browsers.
  3. Ensure that interactive elements like dropdowns, checkboxes, and radio buttons work correctly across different browsers.
  4. Check that JavaScript and Ajax feature work correctly across different browsers.

Checklist for Performance Cross-Browser Testing:

  1. Test the website’s page loading time across different web browsers.
  2. Verify the website’s caching and resource optimization.
  3. Test the website’s memory usage and CPU utilization.
  4. Ensure that the website’s HTTP requests and responses are processed correctly.
  5. Test the website’s responsiveness and latency.

Checklist for Security Cross-Browser Testing:

  1. Verify the website’s SSL certificate and HTTPS functionality.
  2. Test the website’s input validation and SQL injection vulnerabilities.
  3. Ensure that the website’s login and authentication mechanisms work correctly.
  4. Verify the website’s session management and cookie security.
  5. Test the website’s access control and authorization mechanisms.

Checklist for General Cross-Browser Compatibility Testing:

  1. Test the website on different versions of popular web browsers like Chrome, Firefox, Safari, Internet Explorer, and Edge.
  2. Verify that the website’s functionality is consistent across different operating systems like Windows, Mac, and Linux.
  3. Ensure that the website is accessible to users with disabilities by testing it on different accessibility tools.

Using a comprehensive cross-browser testing checklist can help testers to do a browser compatibility check and fix compatibility issues. This ensures that a website performs well across different web browsers and devices. These checklists for website testing can be tailored to fit the specific requirements of the website and the type of cross-browser compatibility testing required. By following these checklists, browser compatibility testers can ensure various things. For e.g. their website provides a seamless user experience, regardless of the browser or device used.

How To Do Cross-Browser Testing?

Here are some steps to follow for effective cross-browser testing:

  • First, identify the browsers and operating systems that are most commonly used by your target audience.
  • Next, choose a reliable cross-browser testing tool like BrowserStack, Sauce Labs, or CrossBrowserTesting.
  • Use the testing tool to access your website from different browsers and platforms to identify any compatibility issues.
  • Use the developer console to check for errors and issues that may affect the performance of the website.
  • Test the website on different screen sizes and resolutions to ensure that it is responsive and adaptive.
  • Finally, use automated testing tools to save time and effort in identifying and resolving any issues.

By following these steps, developers can ensure that their application is optimized for various browsers and platforms. It also helps in delivering a seamless user experience across all devices.


In conclusion, cross-browser testing is an essential part of the web development process that ensures that the website or application works seamlessly across different browsers and platforms. By following a cross-browser testing checklist, developers can identify and fix any compatibility issues, resulting in a seamless user experience. From identifying the target audience and choosing the right tools to check for errors and testing on different screen sizes, every step in the cross-browser testing process is critical for a successful launch. By keeping the checklist in mind, developers can ensure that their website or application is optimized for various browsers and platforms, delivering a seamless user experience across all devices

We have also discussed the importance of compatibility testing with an example. By using browser compatibility testing, testers developers can streamline the testing process and ensure that their website works seamlessly on different platforms. As the digital landscape evolves, and with the increasing number of browsers and platforms available today, performing cross-browser testing has become more critical than ever. Therefore, it is essential to prioritize cross-browser testing in the development process to ensure that your website is accessible to all users.

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The Test Tribe

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