Synthetic monitoring involves simulating user actions on websites or applications using browser automation, allowing for quick identification of issues before they affect real users. Combining synthetic monitoring with Playwright Test (PWT) provides a powerful toolset for end-to-end testing and monitoring, offering features such as high-level APIs, auto-waiting, and web-first assertions, as well as advanced debugging capabilities like video and trace creation. By using PWT, developers can create maintainable tests, avoid hard-coded DOM or CSS class selectors, and use page object models to reduce duplication and improve readability. The combination of Playwright and PWT is particularly useful for continuous monitoring, integrating with CI/CD pipelines, and providing a global pool of customers for monitoring infrastructure. By adopting this approach, developers can create efficient testing and monitoring efforts that blur the lines between development, operations, and QA, and provide a delightful developer experience.