CDviz vs Splunk

CDviz is built specifically for SDLC observability using the CDEvents standard. Splunk is a general-purpose data platform used for log aggregation, SIEM, and operational monitoring that can be configured for CI/CD pipeline visibility. They are different tools solving different primary problems.

Last updated March 2026. Corrections welcome.

At a glance

	CDviz	Splunk
License	Apache 2.0	Proprietary
Primary purpose	SDLC observability	Log aggregation / SIEM / monitoring
Self-hosted	✅	✅ (Splunk Enterprise)
SaaS option	⏳ waitlist	✅ (Splunk Cloud Platform)
Commercial support	✅	✅ (included)
Data ownership	✅ full	✅ (self-hosted only)
CDEvents standard	✅ native	❌
Data model	Event-driven (push)	Log/metric ingestion (push)
DORA metrics (out of the box)	✅	⚠️ possible, requires setup
Beyond monitoring: trigger workflows	✅	✅ (via Splunk SOAR / alerts)
Deployment & artifact tracking	✅	⚠️ possible, requires setup
Customizable storage backends	✅ (PostgreSQL, ClickHouse…)	✅ (Splunk indexes / SmartStore)
Visualization	Grafana, BI, AI agents, MCP, IDP	Splunk dashboards / Grafana OSS
Pricing model	Infra + optional support	Volume (GB/day) or workload-based
SDLC-specific setup effort	✅ low	⚠️ high

Key differences

• Purpose-built vs general platform: CDviz is designed from the ground up for SDLC observability — every concept (sources, transformers, sinks, dashboards) maps to the software delivery lifecycle. Splunk is a powerful general-purpose platform that can ingest CI/CD logs and metrics, but SDLC dashboards must be built and maintained from scratch.
• Open standard: CDviz is built on CDEvents, an open CNCF specification for software delivery events. Your data is portable and vendor-neutral. Splunk stores events in its proprietary index format and query language (SPL).
• Time to value: CDviz ships DORA metrics, deployment tracking, artifact timeline, and incident dashboards ready to use. Getting equivalent dashboards from Splunk requires significant SPL query development, data normalization, and dashboard authoring.
• Cost model: Splunk pricing scales with data volume (GB/day ingested), which can become expensive as CI/CD pipelines generate high log volumes. CDviz is infrastructure-cost based, not volume-based.
• Event-driven automation: CDviz routes events to downstream systems (NATS, Kafka, HTTP, ClickHouse…) natively as part of its pipeline. Splunk can trigger actions via SOAR or alert actions, but this is primarily an operational/security use case, not an SDLC workflow.
• Operational overhead: Both require operational investment when self-hosted. Splunk Enterprise is a complex distributed system with heavy infrastructure requirements. CDviz is a lightweight Rust service with a simple TOML configuration.

When to choose CDviz

• You want purpose-built SDLC observability without building dashboards from scratch.
• You are adopting or building on the CDEvents open standard.
• Your primary concern is software delivery metrics — deployments, DORA, incidents, artifact tracking.
• You want real-time event routing to trigger downstream workflows, not just monitoring.
• Cost efficiency matters — CDviz self-hosted does not charge by data volume.
• You already run Grafana and want SDLC visibility alongside your existing infrastructure dashboards.
• You need flexible storage (PostgreSQL, ClickHouse) without vendor lock-in.

When to choose Splunk

• Your organization already runs Splunk for SIEM, security, or operational monitoring and wants to add CI/CD log analysis to an existing platform investment.
• You have complex, multi-source log correlation requirements spanning infra, security, and DevOps — a single platform reduces operational overhead.
• You need Splunk's advanced SPL query capabilities for custom correlation across heterogeneous data sources.
• Your team has existing Splunk expertise and dashboards that would be costly to migrate.
• Compliance or audit requirements mandate Splunk's certified log management capabilities.

Summary

Splunk is the right choice when you already run it for security or operations and want to extend it to DevOps log analysis — leveraging existing investment and expertise. CDviz is the right choice when SDLC observability is the primary goal: it delivers purpose-built DORA dashboards, real-time CDEvents pipelines, and workflow automation out of the box, at lower cost and setup complexity, without volume-based pricing.