Step 4. Automated testing
There are also tools that allow you to test your website automatically. It is important to know that you can only test 15-25% of the accessibility requirements this way.
How do automated accessibility tests work?
Automated accessibility testing runs a number of scripts that compare the content of your web pages to certain criteria. The W3C maintains a list of international testing tools .
There are different types of accessibility testing tools.
Browser Extensions
Testing via browser extensions is usually the easiest way to automate testing. They are often free to use and generally do not require any technical expertise. Often, you first have to navigate to a page and click a button. The extension then generates a test report with accessibility issues specific to that page. If you have many pages to test, this way of testing can be very time-consuming.
Command line tools
Command line tools are often used by developers and require more technical knowledge. They allow you to test multiple URLs or an entire domain at once. They also allow you to check web pages that are still running locally (and therefore cannot yet be tested via the browser).
Examples of such tools are A11y , aXe-cli and Pa11y .
Automated testing alone is not sufficient. It is a 'supplement to' and not a 'replacement of' manual testing. They sometimes give false or misleading results, they cannot test all accessibility france telegram data requirements and the advice is often quite vague. An automated test is therefore not sufficient for issuing an accessibility statement.
Step 5. Test with a screen reader
The screen reader is a widely used aid, especially for blind and partially sighted people. For many of them, it is an essential aid to gain access to the digital world. A screen reader reads the HTML structure and content of a web page from top to bottom. It then converts this into text, reads it out loud and, if necessary, sends it to a braille display. Blind and partially sighted people use the screen reader not only to read text, but also for communication, navigation, requesting services and purchasing products.
This is how a screen reader is used
Screen reader users read a website linearly, from top left to bottom right. They have no overview and cannot see the entire web page. The entire page is read out in text as a ticker. As a result, the visual layout and position of the information are no longer important.
How someone navigates with a screen reader varies.