How do you test for accessibility?

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Testing for accessibility is an important part of web development since it ensures that digital material is accessible and useful for all people, including those with impairments. Accessibility testing encourages inclusivity while also assisting in meeting legal standards and reaching a larger audience. In this post, we will look at the approaches and best practices for testing accessibility in web apps, as well as provide insights into the tools, strategies, and rules that may be used to make the internet a more inclusive place. Understanding how to test for accessibility is a vital in software testing or Mobile app testing that contributes to the building of a more fair and user-friendly online, whether you’re a developer, quality assurance expert, or digital content creator. 

Accessibility testing is a complicated process that goes beyond simply adhering to standards such as the Web Content Accessibility Guidelines (WCAG). It entails assessing different features of a website or application, such as text alternatives for non-text information, keyboard navigation, contrast ratios, and web content logical organization. By delving into accessibility testing techniques and tools, this article intends to give a thorough approach that equips you with the information and skills needed to ensure that everyone, regardless of ability, can fully engage with the digital world. Understanding and executing accessibility testing is an essential component of developing a more accessible and inclusive online, whether you are a seasoned web worker or just starting out.

How do you test for accessibility of the software?

Audience test

The accessibility test is mainly for a person with a disability. If the content on the website is accessible to the disabled person and they can use software applications easily, then the tools and scripts used are right. It is a mixture of automated and manual tests combined for the user’s effective application use. Tools and scripts like screen reading, colour contrast, axe-core, etc., increase the accessibility of the application.

Check the range of testing and tools you are using.

Check the parts of the application you will test. If, you are making a website for a person who is blind, in that case, your focus should be on tools and scripts that can be easily interpreted by blind people. These can include cognitively impaired features you will use to help blind people access software. Some popular tools that make the software applicable to a wide range of people are WAVE, axe-core, screen reading, navigation tools, colour and contrast, forms, and inputs. A complicated task that automated tools can’t perform, so for those subjective, complicated tasks, manual testing is used.

Feedback and validation of the audience are important.

Tools and scripts should be used to get feedback from the audience, and a website should be made for the audience that uses them. If the audience finds difficulty using the application, it is useless, so to know the issues they are facing, their feedback is important. There should be proper mechanisms, from listening to complaints to solving them at a reasonable time. Timely resolution of problem build trust in customer, which increases the market value of the application,

Standards and guidelines should be followed.

There are standard codes of conduct and guidelines for every website software application, which should be followed, the violence of which causes a legal consequence. Before making any application available to the audience, it should be verified. First, the application should not violate any guidelines, and everything should be well-researched before implementation. Illegal content causes damage to society at large, and it influences the public at large. Laws and rules are made for digital websites; knowledge is necessary. There should be a team of legal experts to guide what should be included and what not, and there should be timely meetings of experts to investigate the matter. All the content should be reviewed and verified by a legal expert, and chances should be made according to their guidelines. No legal issue should be hidden from them. There should be a diary of all the issues, which will help them know the current legal position.

Stay updated

Tools should be updated according to the changing needs of customers. From time to time, the needs of people change, so there should be speedy and continuous adaptation in applications to the needs of people. If outdated content is there, it is of no use. There should be speedy and continuous adaptation in applications to keep up with the needs of people. If outdated content is there, it is of no use. There should be continuous improvement in content, and a trained and skilled team should run the application. There should be continuous learning of advanced tools and scripts. Many tools help find faults, like unit testing, which identifies the problem at the initial level. It detects the error of a single unit before interaction and integration with another system component, so multiple units are verified at the initial level. The team should have a good communication mechanism to solve issues quickly. Communication gaps delay the process of problem-solving, and feedback from customer help in knowing what things need adaptation and how important those things hold in the customer’s eye.

Positive and negative testing

Verify positive and negative testing; positive testing checks the expected result, and negative testing verifies the unexpected challenges to handling the worst scenarios. There should be a backup plan to handle emergencies. It will save potential threats, time, and money, and from huge losses, there should be testing of all components, and at all stages, it will help in earlier detection of errors, which can become potential threats. There should be a record of all issues and defects to avoid them in the future. It will further help communicate problems to others, and there will be a list of things to avoid and do.

Brand building

Accessibility increases the range of the audience, as the person with a disability can also use it. Hence, it makes it easy to use applications for a wide range of people, which increases its market value. It makes products according to people’s needs, making them valued. It also increases the application’s features, such as navigation tool screen reading, making it more feasible for the customer to use its application, adding value. It makes it valuable all over the world, and it creates a trust bond between customer, which make it a brand in the market,

Accessibility Testing Checklist

Before giving your website or web application the green light, an accessibility testing checklist should include the following criteria to cross off. Here are some critical parameters to consider. Let us investigate.

  • Text replacements: Check that all photos and other non-text elements have text equivalents, such as alt text, that indicate the element’s purpose or content.
  • Contrast in colour: Check that the colour contrast between text and backdrop is adequate for people with visual impairments such as poor vision or colour blindness.
  • Keyboard usability: Check that all functionality can be accomplished alone with a keyboard and that there are no keyboard traps or other difficulties that prevent keyboard-only users from accessing the material.
  • Resizable text: Make sure that text can be resized without the need of assistive technology and that the layout does not break or become unreadable after resizing the text.
  • Labels and form fields: Make sure that all form fields have appropriate and clear labels, and that the labels are related with the fields correctly.
  • Navigation: Check the navigation for a clear and consistent structure that is easy to identify and utilise for assistive technology users.
  • Language: Verify that the website or application is available in multiple languages or that users may simply switch between them.
  • Compliance: Check to see if the website or application complies with accessibility norms and standards such as WCAG 2.1 and the Americans with Disabilities Act (ADA).

Types of Accessibility Testing

Each method of testing has advantages, and combining these techniques is typically the best way to assure a thorough examination of the accessibility of a product, service, or environment. You can do accessibility tests using functional testing, usability testing, compatibility testing, and performance testing.

  • Functional Evaluation: This form of testing entails assessing the functionality of a software deliverable to guarantee that it is widely used by all. It entails putting the product, service, or environment through its paces with assistive devices like screen readers and keyboard-only navigation, as well as with actual persons with disabilities.
  • Usability Testing: This entails analysing a product, service, or environment to ensure that it is easily understood and used by everyone. This can include enlisting the help of people with impairments to test the product and provide feedback on their experience.
  • Testing for Compatibility: This sort of testing involves determining a product’s, service’s, or environment’s compatibility with various devices, browsers, and assistive technologies. This includes testing the product on various operating systems, browsers, mobile devices, and assistive technologies.
  • Performance Testing: This type of testing entails assessing how a product operates in order to assure its versatility. It can entail testing a website’s or application’s load time as well as the responsiveness of buttons and controls.

How to do accessibility testing using LambdaTest?

LambdaTest, an AI-powered test orchestration and test execution platform that allows you to perform automation testing and evaluate the accessibility of websites and online apps for Windows, macOS, and Safari browser online platforms utilizing Screen Reader and Speech Viewer via NVDA (Non-Visual Desktop Access). In this section, we’ll look at how to use the LambdaTest platform to test the accessibility of your website.

  1. Sign up: Begin by signing up on LambdaTest.
  1. Select Browser testing: From under Real Time Testing option, select ‘Browser Testing’.
  1. Begin Test: Enter your website URL and select the ‘Version’, ‘OS’, and ‘Resolution’ options. Then, press the ‘Start’ button.
  1. Wait: Wait for your test to process.
  1. Check Accessibility: Now click on the Settings icon and choose Accessibility.
  1. Select Screen Reader: Under Accessibility, select ‘Screen Reader’ checkbox. This will give a verbal description of your web page using VoiceOver.


In conclusion, LambdaTest is an appealing option for accessibility testing, providing a sophisticated and user-friendly framework for ensuring that your online apps are inclusive and accessible to all users. Its inclusion of accessibility testing in its broader portfolio of testing capabilities simplifies the process, making it easier and more efficient for developers and QA teams.

The ability to choose from a wide range of browsers and devices, together with parallel and responsive testing methods, guarantees that you can examine accessibility in a variety of scenarios. The extensive accessibility results and user-friendly interface of LambdaTest make it easier to identify accessibility issues, allowing you to address them quickly and improve the user experience for people with disabilities.

Furthermore, the platform’s connection with CI/CD pipelines, as well as the ability to output reports for documentation and collaboration, underline the platform’s fit for modern software development practices. The cloud-based architecture, scalability, and cost-effectiveness of LambdaTest make it an enticing alternative for teams of any size, providing a full solution for accessibility testing and quality assurance in web development.

Also Read: Microsoft leads the way in accessibility with the new Surface Adaptive Kit



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