---
title: cf.ray_id · Cloudflare Ruleset Engine docs
description: The Ray ID of the current request.
source_url:
  html: https://patricia-pcx17119-l7-overrides.preview.developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.ray_id/index.md
  md: https://patricia-pcx17119-l7-overrides.preview.developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.ray_id/
---

# cf.ray\_id

`cf.ray_id` String

The Ray ID of the current request.

A [Ray ID](https://developers.cloudflare.com/fundamentals/reference/cloudflare-ray-id/) is an identifier given to every request that goes through Cloudflare.

Categories:

* Request
