Checkly

Checkly enables the execution of synthetic monitoring and end-to-end functional tests. It allows teams to verify uptime, measure page load performance, and validate complex user interactions like logins or checkout flows by running headless browser instances against live production or staging environments.

Site Reliability Engineers, DevOps practitioners, and Full-stack developers benefit most from Checkly. It is designed for teams that prefer managing their monitoring infrastructure as code, allowing them to version control their test suites alongside their application source code.

To implement Checkly, you need existing web applications accessible via public or private endpoints. You must be comfortable writing test logic using Playwright or Puppeteer frameworks, and you will need to configure your environment to support the deployment of monitoring checks via configuration files.