Continuous Integration. A good example of that service would be something like http://travis-ci.org http://travis-ci.org or https://jenkins-ci.org https://jenki

Continuous Integration. A good example of that service would be something like http://travis-ci.org http://travis-ci.org or https://jenkins-ci.org https://jenkins-ci.org. Basically it's a service that runs some predefined task (usually your test suites) at important points: when something is pushed to or merged into master, when a Pull Request is opened, etc...