Checkly
Monitoring as code platform powered by Playwright and OpenTelemetry — enabling dev teams to test, monitor, and observe applications.
About
Checkly is an application monitoring platform built on Playwright and OpenTelemetry. Synthetic checks, API checks, uptime monitoring, dashboards, status pages, and tracing run from 20+ global locations, with monitors written as code in JS/TS, Terraform, or Pulumi.
Customers include Vercel, CrowdStrike, 1Password, Fastly, Airbus, Carhartt, Mistral, ServiceNow, Railway, Hopper, GoFundMe, and Fanatics. Founded to let developers monitor their critical APIs and UIs without leaving their codebase.
Offices in New York and Berlin. Backed by Accel, CRV, Balderton, and Mango Capital, with angel investors from Vercel, GitHub, Microsoft, and Twilio.