---
title: http.response.headers.names
description: The names of the headers in the HTTP response.
image: https://developers.cloudflare.com/core-services-preview.png
---

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#  http.response.headers.names 

`http.response.headers.names` ` Array<String> ` 

The names of the headers in the HTTP response.

The names are not pre-processed and retain the original case used in the response.

The order of header names is not guaranteed but will match [http.response.headers.values](https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/http.response.headers.values/).

Duplicate headers are listed multiple times.

* **Decoding**: No decoding performed
* **Whitespace**: Preserved
* **Non-ASCII**: Preserved

**Note**: The availability of HTTP response fields depends on the exact Cloudflare feature and your Cloudflare plan.

Example value:

```
["content-type"]
```

Example usage:

```
any(http.response.headers.names[*] == "content-type")
```

Categories: 
* Response
* Headers

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```