You can use Selenium Builder with GitHub, Travis, and Sauce Labs to create a continuous integration solution that automates testing for your website. You store all your tests in the cloud on GitHub, and Travis runs them on Sauce Labs' infrastructure. The process is automated, so you don't need to build any testing infrastructure yourself. To set it up, you install plugins, record and save tests as JSON files, configure the Selenium interpreter with a config file that tells Travis what to run, encrypt your access key for security, and then enable Travis integration for your repository. Once everything is set up, Travis runs your tests automatically, sending you an email if any of them fail.