Shift-left testing is a DevOps best practice that involves running tests early and often in the development process to catch issues before they impact users, reduce technical debt, and foster efficient cross-team collaboration. Datadog Synthetic CI/CD Testing offers a flexible approach to shift-left testing by allowing teams to incorporate their existing Datadog Synthetic tests at any point in their CI/CD pipeline. This enables companies to maintain positive user experiences and minimize downtime. By running Synthetic tests within the CI/CD pipeline, teams can detect issues earlier, ensuring safe releases and enabling seamless integration with popular CI tools such as GitLab, Jenkins, and Azure DevOps.