Monitoring
APM, logging, error tracking
Services(4)
Ownership Structure
Deployment
License Type
Country
70%
EU
BootstrappedSaaS
Monitoring
Oh Dear
Belgian website monitoring service with uptime monitoring, SSL certificate checks, broken link detection, and status pages.
70%
EU
Mixed (<30% Non-EU)
Monitoring
AppSignal
Application monitoring with error tracking, performance insights, and host metrics for developers.
53%
EU
Mixed (>30% Non-EU)Self-HostableMIT
Monitoring
Langfuse
Open source LLM engineering platform for observability and prompt management. Berlin-based.
★ 23.1k
49%
BootstrappedSelf-HostableAGPL-3.0
Monitoring
SigNoz
Open-source observability platform with traces, metrics, and logs in a single pane.
★ 26.1k
46%
EU
Non-EU ControlledSaaS
Monitoring
Checkly
Berlin-based synthetic monitoring platform for APIs and websites with Playwright-based browser checks and global monitoring locations.
46%
EU
Mixed (<30% Non-EU)SaaS
Monitoring
Better Stack
Prague-based observability platform combining uptime monitoring, log management, incident management, and status pages.