The best approach to testing for accessibility is to combine automated and manual techniques. We have gathered a group of tools that can be used in conjunction with the Visa accessibility test procedure.
Firefox is a good browser for testing because it is available across platforms and there are several Firefox extensions available that streamline the testing process. Each of the recommended Firefox tools is described under the menu on this page and a link to download each tool is provided.
The Visa accessibility testing process requires the use of two standalone tools available for free on the web. HTML CodeSniffer and HTML validator are used early in the testing process to check for high level errors before digging into the more manual testing procedures.