Overview
The Application Reliability Platform Built For Modern Engineering Teams
Checkly enables organizations to unify testing, monitoring, observability, and incident management into a coded workflow. Checkly's approach of monitoring as code enables organizations to automate & scale their testing and monitoring using LLMs or hosting provider's like Vercel like never before:
- Reuse Playwright tests as monitors running globally
- Configure alert channels like Slack & Email
- Dive into traces for quick resolution
- Build Status Pages
Enjoy a developer-first experience as you build your monitoring configuration using TS/JS contructs, our powerful CLI and API, or our Terraform and Pulumi providers.
Preview

Products
Checkly
Synthetic monitoring
Plans starting at $0
Instructions
Features
Playwright-Powered End-to-End Testing: Trigger end-to-end Playwright tests and API monitoring whenever you deploy to your Vercel app, ensuring your apps remain fast, reliable, and error-free.
Monitoring as Code: Define & manage monitors using Terraform, JavaScript SDKs, or Checkly CLI. Monitoring is version-controlled and scalable alongside your application.
API & Synthetic Monitoring: Monitor APIs for uptime, performance, and correctness. Ensure they respond correctly with automated checks for latency, status codes, and expected responses.
Observability with OpenTelemetry: Gain insights into application performance by connecting Checkly with OpenTelemetry tracing, providing full visibility into failures.
Smart Alerts & Incident Management: Get instant notifications via Slack, PagerDuty, or webhooks when a failure occurs. Full context, no noise—just the data needed to resolve issues faster.