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Bohdan Mushta, Automation and Manual Quality Assurance Engineer

Apr 07, 2024 15 min read

How To Test Responsive Website: And Why Need It

The following material will discuss testing a responsive website on different devices. By following our tips, you will understand the need and importance of responsive design for your website.

How to test responsive website

It only takes visitors 50 milliseconds to form an opinion about your website, and 94% of those first impressions are related to design. So, how to test a responsive website, and why do it? An adaptive website is a web resource with a flexible design that precisely reflects different digital devices. People do not let mobile gadgets out of their hands. They use them for work purposes, to search for information, communicate, and shop. However, such commitment to the Internet has its peculiarities.  

Users have become impatient with the work of websites and leave them if they take a long time to load, are opened with errors, or the design is distorted in the mobile version. Site owners are interested in their online portals to attract an audience, increase traffic, and increase the conversion rate if the resource is commercial. How to test responsive website on different devices will be devoted to the following material. 

Adaptability of a web resource - what it is? 

A website is responsive if all its elements are visible and accessible regardless of the device and screen size. Developing an adaptive website implies the creation design automatically adapts the site windows to the digital device. The question of how to test whether your site is responsive is easy to answer. When testing design responses, you should pay attention to the following points: 

  • images should be displayed equally quickly on the website and in the mobile version; 
  • the content is comfortable to read, the font is comfortable to read, and it repeats the same on all devices;
  • all page items are saved when the screen zooms in and out;  
  • how easy it is to navigate between pages;   
  • the appearance of the resource preserved on screens with different resolutions;  
  • how visible are the contact form buttons, is it easy to fill out the required fields;  
  • how the color design of the site conveyed;  
  • the design is not distorted when switching from portrait to landscape format;  
  • all links take you to the right page in the same way;  
  • headings and text are aligned;  
  • all elements are convenient to use regardless of the size of the screen or device;  
  • scrolling and zooming are convenient.  

As described above, adaptive web design aims to develop a universal website layout that will automatically change scale while preserving all elements. That is, it eliminates the need to create mobile versions for individual types of digital devices. This approach is beneficial to companies in terms of savings. It significantly impacts the formation of a high-quality user experience with web services perfectly adapted.

Optimizing the site for mobile devices is necessary because a large portion of users visit sites from their phones. One effective way to improve rendering on small screens is to hide the header navigation elements in a drop-down menu, known as a "burger" menu. This solution allows you to free up visual space, make the design cleaner and clearer, and thereby increase the convenience of using the site on mobile devices. 

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What elements are worth paying special attention to when testing a site for responsiveness 

How to test responsive design websites:


Textual content style: All content should follow the same style concept: fonts, text size, style, color, and alignment on all devices. Maintaining text formatting proportions creates better interaction between users and the resource. 


Multimedia: The quality of images is of great importance. Site visitors use them to decide whether to buy a product or not. The possibility of detailed transmission of photo and video content on various devices. They should be optimized for all screen sizes and do not overlap. Such adaptation arouses users' interest and promotes closer communication with the site. Also, the visual effect in recent years has become more relevant than text content, so it should be given special attention before testing the site's responsiveness on mobile. 


User interface convenience: It should be easy to expand and collapse on different screen sizes. This makes it easier for users to move around the resource between pages. Horizontal positioning of the menu on the main computer screen is appropriate. It does not overlap the content, but in portable devices, such a placement causes inconvenience, so the collapsible version will come in handy. It is important to test this design element not only on different devices but also in different browsers. The reflection of the menu on them may differ. 

To understand how to test a website's responsiveness, you should understand that in addition to the above, there are many more elements to which you need to pay attention. 

Advantages and disadvantages of adapted websites

Before looking for how to test website responsiveness and which tools are the most effective, it's worth comparing the pros and cons of optimizing a web portal.  

The benefits of adapting the resource are manifested in several ways.


Convenience: On an adapted site, it is easy to move between pages. If this is not the case, visitors will have a negative experience and will not return to the site again.  


Profitability: Nowadays, everyone has smartphones. Many places have Internet access, so new users are more likely to visit and stay on a site adapted to their phones.


Stimulate search engine promotion: Check your place in the search engine rankings. Adaptation has a positive impact on SEO promotion. When evaluating resources, search engines consider their availability for mobile gadgets, loading speed, and quality of reflection. That is, the site must work perfectly on any device. Otherwise, the amount of organic traffic will be minimal, and the ranking in search engines will fall. 


Increased audience loyalty: Smartphone users will favor a site that is fully reflected on their gadgets. 

How to test the responsiveness of a website like we do? The answer is simple: check the website's responsiveness and adapt it as much as possible to meet the modern demands of the users. 

Available methods on how to test responsive website 

These testing methods will help you check how well your website works at different screen resolutions and browsers.  

Manual method  

This option on how to check the responsiveness of a website is simple but tedious. There is a high risk of human error when using it. It is relevant for small projects and applications, but with multi-page sites, it is better to combine manual and automation. 

Let's look at an example of how to check website response time can be done in just a couple of steps: 

  • open your site in Google Chrome; 
  • in the upper right corner, click the settings button ; 
  • select "Developer Tools"; 
  • choose "Switch Toolbar"; 
  • enable adaptive design mode. 

After these actions, a list of mobile devices will appear. You can see how the web resources reflect on them by clicking them. At this stage, you can manually adjust the site resolution if it is not high quality. 

There is a more straightforward method - use the web inspector on Google Chrome:

  • open your site and press F12 or Shift+Ctrl+C, or right-click anywhere on the page and in the context menu, click on "Explore element code"; 
  • panel developer mod will be displayed somewhere on the side or bottom; 
  • select Toggle device toolbar, and also add that it can be opened with hotkey Ctrl + Shift + M;  
  • select the device from the provided list. 

The screen will show how your web resource responds on various handheld devices. 

How to test responsive design websites using testing tools 

Services from below can help identify specific bugs associated with responsiveness or allow some everyday things to be tested faster.   

Important: Not all tools are free. Some of them require a certain amount of money to use.  


Google Mobile Friendly: This service is easy to use and tests the site's adaptability; it is enough to paste its URL address into the provided line. The result will demonstrate how the resource is reflected on a smartphone and its overall assessment of optimization for portable devices. 


Firebase Test Lab: This tool allows you to test resources on portable devices with Android and IOS operating systems. Test Lab integrates with Android Studio, cloud, and Firebase.


Blisk: This tool allows you to test the resource for responsiveness on 50 devices free of charge. You need to download the application on your PC from the official website to use it. The check is available for iPhones with different resolutions, Samsung models, iPads, laptops, and computers. The peculiarity of the Blisk tool is that you can change the device's orientation from horizontal to vertical, capture all actions in the browser, and take screenshots. 


BrowserStack: It allows you to check websites and mobile offers, what they look like, and functionality in different web browsers and on different devices like Samsung, Apple, Xiaomi, and other popular models. Figuring out how to check the responsiveness of a website on BrowserStack is not tricky. All you need to do is to select your web browser, operating system, and portable device model. BrowserPack can have certain integrations with various frameworks for automation, such as, that is, it is thanks to BrowserStPack that we can write autotests for mobile applications that will run on browser-emulated devices 

You can test a site on BrowserStack manually or with the help of and Appium frameworks.

Let's also look at some automated frameworks: 

  • Testsigma offers a scriptless automation environment, supporting over 1000+ Browser-OS and 2000+ mobile device combinations for extensive automated responsiveness and cross-browser testing. It emphasizes easy test creation in natural language, parallel testing, and integration with CI/CD tools . 
  • Galen Framework focuses on the layout and responsive design of web applications. It allows you to define how your website should look across different devices and verifies these specifications through automated tests. Galen's Specs Language enables describing complex layouts in a readable format, incorporating visual testing like image comparison and color scheme verification . 
  • LambdaTest provides device farms and emulators, as well as browser extensions and responsive design frameworks for testing your site on a variety of devices and screen sizes. It highlights the importance of using various tools to ensure thorough testing and proper functionality on all devices . 
  • Telerik Test Studio offers an enterprise UI test automation platform that facilitates automated website responsive testing, allowing you to cover more scenarios in less time. It supports recording and executing tests in Chrome and Edge, emulating different devices, and reusing elements across test types within a project. 

And yet, how to test a responsive website and with which tool? The conclusion is that for each type of inspection, it is better to choose a tool that gives maximum information on the site. 

What are the benefits of responsive design for web sites? 

Understanding how to test responsive design websites is not a privilege of some businesses but an urgent necessity. Using manual and automation testing services for adaptive website testing, our team helps promote online resources in search engines. Demonstrate the benefits of creating adaptive websites by listing the advantages of adaptive web design. 


Positive impact on business scaling. The adaptive version allows you to favorably present your products to visitors' websites using mobile phones. The number of people who visit pages directly affects conversions. Therefore, owners should provide them with straightforward and fast navigation. Especially since mobile commerce is gradually replacing the usual ways of commerce, businesses need to remain flexible to maintain targeted traffic. 


Performance Factors improvement. Having a responsive design indicates that companies are customer - centric. However, it is impossible to predict what size of display customers have on smartphones and with what resolution. Therefore, providing the most comfortable navigation at any possible screen parameters for all visitors is necessary. This has a positive effect on consumer actions behavioral factors. The resource owner that every element of his web service is visible and accessible to potential customers with any smartphone model. 


Improving the visibility of the web service for search engines. When there are differences between the mobile and web versions of online resources, the site's promotion in search engines slows down. Search engines focus on quality standards and evaluate how convenient it is for customers to navigate between a smartphone and a PC on the same website. 


Easier analytics. Analytical reports are necessary to accurately see the marketing strategy and the website's results on different devices. They are easier to generate when the information comes from a single resource version.  


Economic benefit. It is much cheaper to adapt an online site to a single web design than to order the development of separate versions and make regular edits so that they meet customer requirements and search standards. Creating one quality resource will allow you to make changes when necessary for all versions of the viewer simultaneously. 


Mobility. The adaptability of the design allows you to solve work problems and control your web project from any device.  

All companies have already appreciated these adaptability advantages and are actively using them to popularize their services and increase profitability. 

Conclusion: How to test if your website is responsive? 

From the outside, figuring out how to test responsive website design may seem challenging. However, a detailed look at adaptive testing shows that testing is easier than it seems, especially since many tools are available.  

If a business project plans to develop, sets goals to increase traffic and profitability, and wants to increase its presence in the virtual space significantly, it should follow the search engine's requirements and ensure the site's most complete and qualitative display on any digital device. Talk to us, and we will help you with unique solutions for website testing.

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Frequently Asked Questions

What adaptive version website?

An adaptive version of a website refers to a range of pre-made layouts designed to fit different screen sizes. The device's browser selects the most suitable design from these options, ensuring that webpages function correctly across various devices. This approach allows for differently-sized graphical user interfaces (GUIs), which cater to the specific dimensions and capabilities of each device, from desktops. 

How do I check the responsiveness of a website?

To test your online venue for responsiveness, use free and paid methods or check through your browser. They can work online or require installation on your computer. Distinguishing among them can be simulators, test farms, and emulators. Simulators are suitable for UI tests, which determine the functionality of the resource and the compliance of graphic design elements.  

What exactly do web inspectors check for adaptability when testing an online resource?

Web design testing for adaptability checks:  
- identity of the website links in all popular web browsers and digital gadgets;  
- how fast the site loads on portable devices; 
- whether the content remains the same at any screen resolution, whether color reproduction is maintained;  
- whether the content overlaps the communication points in the clients;  
 - whether the content overlaps the communication points in the clients;  
Web tools test these parameters, but the evaluation considers many more factors. The goal of testing is to create a better UX. 

Is it possible to eliminate errors in the responsiveness of a web resource?

No, it's very challenging to eliminate all errors in responsiveness due to the vast diversity of devices and screen sizes. However, employing best practices like mobile-first design, flexible layouts, and extensive testing can significantly reduce errors and improve the responsiveness for the majority of users. 

How do you understand the term "online service adaptability"?

Adaptability of a web portal is the quality of design display and preservation of functional settings on any device from which the user accesses the site. That is, all the site's content should automatically change and adjust to the parameters of displays and their OS resolution and retain navigation in full, regardless of the type and model of the digital gadget. Adaptability makes companies closer to users and increases traffic, sales, and profitability. 

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