---
title: bereq.is_clustering
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/variables/backend-request/bereq-is-clustering
---

**Type:** BOOL  
**Access:** read-only

**Available in:** all subroutines

Whether the request was forwarded to another machine in the cluster.

Always false in `vcl_recv` and `vcl_hash` because the decision to cluster is 
made after object lookup.