Monitoring
APM, logging, error tracking
Services(4)
Ownership Structure
Deployment
License Type
Country
98%
EU
BootstrappedSaaS
Monitoring
Oh Dear
All-in-one website monitoring for uptime, SSL, links, and performance
73%
EU
Mixed (<30% Non-EU)
Monitoring
AppSignal
Application Performance Monitoring for Ruby, Elixir, Node.js, and Python
65%
EU
Mixed (>30% Non-EU)Self-HostableMIT
Monitoring
Langfuse
Open source LLM engineering platform for traces, evals, and prompt management
★ 26.7k
57%
BootstrappedSelf-HostableAGPL-3.0
Monitoring
SigNoz
Open-source observability platform for traces, metrics, and logs
★ 26.8k
37%
EU
Mixed (<30% Non-EU)SaaS
Monitoring
Better Stack
Observability stack with uptime monitoring, logs, and incident management
20%
EU
Non-EU ControlledSaaS
Monitoring
Checkly
Application monitoring platform for APIs and websites using Playwright