---
title: cf.tls_cipher · Cloudflare Ruleset Engine docs
description: The cipher for the connection to Cloudflare.
chatbotDeprioritize: false
source_url:
  html: https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.tls_cipher/
  md: https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.tls_cipher/index.md
---

# cf.tls\_cipher

`cf.tls_cipher` String

The cipher for the connection to Cloudflare.

Example value:

```txt
"AES128-SHA256"
```

Categories:

* Request
* SSL/TLS
