Automated testing leverages Access Engine to automatically find accessibility issues on web pages via Access Assistant, AMP spiders, or Access Analytics. However automated testing tools cannot test for everything, and in fact, automated testing can only test for around 30% of all possible accessibility violations. Manual testing should therefore be completed for web pages to ensure complete test coverage and limited risk.
The recommended approach to manual testing is to use Access Assistant's manual testing capabilities, so testing can be done in context.
Access Assistant is a browser plugin, available for Chrome, Firefox and Microsoft Edge, that allows users to automatically test web pages that are active in the browser. Manual testing features are also available in Access Assistant, and these are recommended as a manual testing tool because they allow testers to perform manual testing in a more efficient and expedient manner. Read more about manual testing in Access Assistant.
Note that Access Assistant does not support Single Page Applications.