Datadog is a SaaS-bases data analytics platform monitoring service for cloud-scale applications that provides monitoring of servers, databases, tools, and services. Datadog uses a Go based agent and supports cloud service providers Amazon Web Services, Microsoft Azure, Google Cloud and RedHat OpenShift.
GitLab has a powerful monitoring capability with Prometheus, a time-series monitoring service, providing a flexible platform for monitoring GitLab and other software products. GitLab provides out of the box monitoring with Prometheus, providing easy access to high quality time-series monitoring of GitLab services. GitLab has built-in monitoring that can automatically monitor your deployed applications, with extensive support for native cloud, container and microservices technology. Additionally, Gitlab uses Jaeger, an open source end-to-end distributed tracing system used for monitoring and troubleshooting microservices-based distributed systems.