Splunk Observability

Splunk APM (formerly SignalFx) offers a high-performance observability solution built on OpenTelemetry. Unlike many competitors, it uses 'no-sample' tracing, meaning it collects and analyzes every single trace to ensure that even rare, intermittent errors are captured. This makes it exceptionally powerful for debugging 'long-tail' latency issues in distributed systems. Splunk correlates traces with logs and metrics in real-time, providing a unified workspace for SREs and developers to troubleshoot complex cloud-native architectures at scale.