# Varnish Logging Tools

**Canonical:** https://apis.io/apis/varnish/varnish-logging/  
**Provider:** Varnish Cache — https://apis.io/providers/varnish/  
**Documentation:** https://varnish-cache.org/docs/trunk/reference/

Varnish Logging Tools is one of 3 APIs that [Varnish Cache](https://apis.io/providers/varnish/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Logging, Monitoring, Observability, and Statistics. The published artifact set on APIs.io includes API documentation and an API reference.

Varnish ships with a suite of log-analysis tools that read from the Varnish Shared Log (VSL). Tools include varnishlog (raw log streaming), varnishncsa (NCSA/Apache log format), varnishstat (live counters), varnishtop (real-time activity display), and varnishhist (response time histogram).

## Machine-readable artifacts (2)

- **Documentation** — https://varnish-cache.org/docs/trunk/reference/varnishlog.html
- **APIReference** — https://varnish-cache.org/docs/trunk/reference/varnishstat.html

## Other Varnish Cache APIs (2)

- [Varnish Cache CLI API](https://apis.io/apis/varnish/varnish-cache/)
- [Varnish Modules (VMODs)](https://apis.io/apis/varnish/varnish-vmods/)

## Tags

Logging, Monitoring, Observability, Statistics

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/varnish/varnish-logging/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/varnish/.