Cross browser testing checklist before going live


A website is the forefront of a business organization through which a company can connect with customers. Going live on a website is the utmost criterion of any website. Hence, after developing a website, it is essential to run some cross-browser testing before going live. It ensures that your website is stable and can continue with the live session without crashes and glitches. 

If you are looking for a cross browser testing checklist, you must read this article thoroughly. Here are some critical areas in the checklist that helps to carry out dauntless live sessions. You will get to know about crucial cross-browser testing tools here. 

Due to an increase in the smartphone sector, websites are mainly targeted to capture these audiences. Therefore, creating a website that runs virtually on smartphones is required. Sometimes even the best websites fail to go live due to practical reasons. 

Every website surrounds an Operating System, different platforms, and also browsers for the future. Moreover, there are times when a minor step can cause specific problems that affect the morality of the company. Running a proper and effective cross-browser testing checklist is a must. This helps to overcome the unwanted bugs, glitches, and crashes that degrade live sessions’ quality. 

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What are the Pre-Requirements before Conducting the Checklist?

A pre-requirement is necessary before running through the checklist, as it ensures you make proper strategies. Some of them are mentioned in this section:

  • The first and foremost thing that you need is the device and its browser. It helps in formulating correct strategies. 
  • After making the cross-browser testing strategies, you should also test the locally-hosted website through testing tools. It helps the website connect with the clouds flexibly to run the cross-browser testing through an SSH tunnel. This has a direct effect on the SEO and therefore enables your website to top the search engine. 
  • Before running the cross-browser testing, you need to have several devices or set up simulators. Tools like Lambda Test provide Android and iOS devices to test. 
  • Once you are done with the pre-requirements, it’s time to run the actual cross-browser testing before going live. 

What are the Checklists for Cross-Browser Testing before Going Live?

The checklist works as a to-do list before going live and ensures your website works perfectly during the live session. 

Aligning Elements in Browsers 

A proper alignment of elements is necessary in all browsers so that everything is in the correct place before testing. Carrying out cross-browser testing requires step-by-step details to make appropriate live sessions. If you are missing out on this criterion, there are possible chances that your website can crash at any moment. This is why some renowned websites often fail to go live. Put each element in the correct order so that you can enjoy the benefits of going live on the website with the customers.

Verifying SSL in Different Browsers

Are you facing difficulties in opening the website through browsers? The prime reason for that is that your website’s SSL does not support the browser’s current version. The SSL certificate is essential to open the website in the browser. Moreover, without proper certification, the website cannot go live as it violates the browser version’s norms. 

Users using those browser versions that do not support the SSL certificate cannot access the website. Therefore, you must make sure your website supports and has all the SSL certificates of all existing browsers in the market. Moreover, the SSL certificate permits the website to go live in the browser. Therefore verification of SSL certificate in different browsers is mandatory. 

Execution of Font in Several Browsers

Website is all about uniqueness and innovation. Therefore, you need to develop a website that attracts customers. To do so, you need to have exciting fonts with the color combination that supports your business. It helps in creating a market and also raises brand awareness. Moreover, your website is likely to have the top position in the search engine; therefore, fonts play a crucial role. 

Sometimes this font might be a problem because there are issues regarding the font rendering. It affects the browser in such a way that the entire website gets crashed repeatedly. Therefore you need to ensure that the website’s fonts are correctly rendered in all the platforms, OS, and browsers. 

Remember to Verify your HTML and CSS

The next big step in the checklist is validating the HTML and CSS. Before going live through the website, you must make sure that there are no tabs open on the screen. Otherwise, the users can see the code. This is one of the worst nightmares for developers. Therefore a proper validating is necessary before going live. 

Tools such as W3C Markup validation service, JS Formatter, and Free Formatter help authorize your CSS, JS, and HTML before the live sessions. Developers can quickly locate browser compatibility issues through these tools and modify them for a better experience. 

Connecting APIs in Browsers

Some browsers avoid the API calls and therefore shows tantrum in letting the website go live. Many browsers can easily acknowledge the API request, whereas some can decline it, thus throwing up errors during the live session. Opera Mini is one such renowned browser that ends up declining the API calls. 

Apart from this, several browsers do the same; therefore, you need to check that your APIs connect to every browser. Some API methods result in an error in the iOS Safari, Opera Mini, and IE 11. Therefore, check that your APIs are compatible with all the browsers, or your users won’t be able to connect with your website when you are on a public server. 

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Is Your Media Element Compatible with Browsers?

Having a tutorial or demo video on the homepage is most loved. In the present generation, the users are connecting better with videos than reading huge articles. Therefore, you need to provide them with exciting videos for better reach and SEO purposes. 

Developers and web designers are taking advantage of this fact. However, there are times when the media elements do not support the browsers, resulting in errors. Sometimes the browser not only puts down the video but also the images due to incompatibility. Therefore check that your media element is compatible with the browsers before starting the live sessions.

Now, here are some minor but essential factors that you also need to re-check before going live:

  • Checkbox Alignment: Sometimes, the checkboxes cause severe problems in conducting the live session. Therefore check thoroughly that all the checkboxes are appropriately aligned and are in working conditions. 
  • Proper Alignment of Elements: Ensure that your elements are correctly aligned with the browser for crash-less live sessions. 
  • Functioning and Alignment of Buttons: In the CTAs, the buttons play a significant role. Therefore you need to check whether all the controls are aligning and also functioning correctly. 
  • Zoom In and Zoom Out Functions: Take a close look at the zoom in and zoom out functionality to not break the UI in action. 
  • Forms and Form APIs: You must ensure that the forms take data and are passed to the collecting API endpoint without any breakpoints. 
  • Drop-down Menus: Validate that the drop-down menus are working correctly across all the platforms. 

What are the Cross-Browser Testing Tools?

It would be best to have proper and useful cross-browser testing tools to confirm that you are checking all the above points in the checklist. These tools make your work easy and steady so that there are no loopholes left before going live. 


A Cross-Browser application or website can run smoothly on multiple devices and operating systems. Cross Browser application development allows the developers to create one universal application for all platforms. This process helps to save a lot of time and money in the development life cycle. However, the developers must perform proper testing as it is a complex process. Various platforms and tools can help the developers to perform cross-browser testing.

LambdaTest is a platform to perform automated cross-browser testing on an online Selenium grid. The testers need to create proper selenium test scripts to conduct automated testing with LambdaTest. They can also use these test scripts to perform Selenium testing of the web application on multiple browsers simultaneously. Millions of companies all around the world use LambdaTest to perform cross-browser testing of their web applications. The cloud environment of LambdaTest ensures that you can test your application on the latest devices. It has an effortless mechanism to log all the bugs detected during the testing phase. In simple terms, LambdaTest helps companies develop, test, and deliver high-quality applications quickly. Lastly, the attractive plans of LambdaTest support the growth of small start-up companies. 


This tool helps to ensure browser compatibility with the website. It runs programs and processes that help locate the barriers that lower websites’ effectiveness across different operating systems and configurations. 


  • Run tests across 1500+ real environments without any configuration or setups.
  • Give real-time access to devices, browsers, resolutions, and operating systems.
  • UI functional test tool helps in creating and running a test on web applications. 

Bottom Line

These are some main checklists and modern tools to carry out cross-browser testing before going live on the website. Remember that all the above points and factors are essential, and a minor overlook can cause massive troubles. There are times when a minor issue brings down an entire website; therefore, you need to have a close check on all the factors in the checklist.