We all want our websites to be responsive and useful. However, the biggest correlation between website performance and business results is seen by improving the performance and speed of your website. Users get bored if they have to wait for too long to load your website or application. Performance Testing and Load Testing your website and restful APIs will help you understand better how your website and web services behave when a lot of users access your website at the same time.
An excellent approach to accessibility is to build accessibility into your app workflow rather than address it at the end. When you build an accessible mobile app, you make your app inclusive of everyone, both with and without a disability. Learn how a tool like Bitrise can help!