---
title: req.digest
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/variables/cache-object/req-digest
---

**Type:** STRING  
**Access:** read-only

**Available in:** all subroutines

The digest (hash) of the currently served object, derived from information fed 
into `req.hash` during the most recent run of `vcl_hash`. This variable returns 
the digest in hexadecimal (64 characters).