Datadog

Datadog is a cloud monitoring and security platform for infrastructure, applications, logs, networks, user experience, software delivery, and AI workloads. Engineering and security teams can collect telemetry, correlate metrics, logs, traces, and events, investigate incidents, create alerts and dashboards, and extend the platform through integrations and APIs. Its catalog is modular and usage-based, so the final bill depends on the products and volumes selected.

✨ Key Features

• Monitor infrastructure hosts, containers, Kubernetes, and serverless workloads
• Trace applications with APM, service maps, profiling, and error tracking
• Ingest, search, analyze, and route logs with Log Management and Observability Pipelines
• Monitor networks, databases, cloud costs, and data pipelines
• Track browser and mobile experience with RUM, Session Replay, and Product Analytics
• Run synthetic API, browser, and mobile tests for availability checks
• Secure cloud workloads with posture management, vulnerability management, SIEM, and code security
• Support software delivery with CI Visibility, test optimization, feature flags, and code coverage
• Observe LLM and agent workflows through AI and Agent Observability products
• Build dashboards, monitors, notebooks, workflows, integrations, and API-driven automation

💳 Pricing

• Infrastructure Free — US$0, up to five hosts and one-day metric retention for basic collection and visualization.
• Agent Observability Free — Up to 40,000 LLM spans/month, fifteen-day trace retention, unlimited context and evaluations; no credit card required. This is a standalone free tier.
• Other products and higher usage have separate pricing; the free trial differs from these recurring free tiers.
• Infrastructure Pro: $15 per host/month billed annually, $18 on-demand.
• Infrastructure Enterprise: $23 per host/month billed annually, $27 on-demand.
• Infrastructure DevSecOps Pro: $22 per host/month annually, $27 on-demand.
• Infrastructure DevSecOps Enterprise: $34 per host/month annually, $41 on-demand.
• Container Monitoring starts at $1 per container/month or $0.002 per container-hour on demand.
• Agent Observability lists $160 per month for the first 100,000 LLM spans annually, $200 month-to-month, or $240 on demand; additional spans and retention are separately metered.
• Other products use their own units, such as ingested GB, hosts, tests, sessions, events, metrics, or users; volume discounts and custom enterprise terms may apply.

⚖️ Alternatives Compared

🎯 Use Cases

• Monitoring production infrastructure across cloud and hybrid environments
• Tracing slow requests and diagnosing application errors
• Searching logs and correlating them with metrics and traces during incidents
• Checking API, browser, and service availability with synthetic tests
• Measuring real-user experience in web and mobile applications
• Detecting cloud security and workload vulnerabilities
• Tracking deployment quality, tests, and developer delivery signals
• Investigating LLM or agent latency, cost, and failure patterns
• Building an operations dashboard from multiple telemetry sources