Uptime / synthetic

Checkly

Checkly GmbH

Developer-first synthetic monitoring built around Playwright — write real browser tests as code and run them as monitors.

Category
Uptime / synthetic
License
Proprietary
Deployment
SaaS
Cost
Low
Free tier
Yes
Self-host effort
Maturity
Rising
Popularity
The reference tool for "Playwright as monitoring"

The catch

Browser checks are the point but also the cost driver — heavy Playwright suites burn "browser run" quotas fast, and it assumes a team comfortable writing/maintaining test code.

Monitors

SyntheticsTracesNetwork

Capabilities

AlertingDashboardsConfig as codeAPI

Built for

DevelopersSRE / DevOps