---
title: obj.stale_while_revalidate
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/variables/cache-object/obj-stale-while-revalidate
---

**Type:** RTIME  
**Access:** read-only

**Available in:** hit, error, log

See definition of `beresp.stale_while_revalidate`.