---
title: Logging headers and cookies using custom fields
description: Log Explorer now supports logging and querying header and cookie fields
image: https://developers.cloudflare.com/changelog-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/changelog/llms.txt  
> Use this file to discover all available pages before exploring further. 

[Skip to content](#%5Ftop) 

# Changelog

New updates and improvements at Cloudflare.

[ Subscribe to RSS ](https://developers.cloudflare.com/changelog/rss/index.xml) [ View RSS feeds ](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) 

![hero image](https://developers.cloudflare.com/_astro/hero.CVYJHPAd_26AMqX.svg) 

[ ← Back to all posts ](https://developers.cloudflare.com/changelog/) 

## Logging headers and cookies using custom fields

Sep 03, 2025 

[ Log Explorer ](https://developers.cloudflare.com/log-explorer/) 

[Log Explorer](https://developers.cloudflare.com/log-explorer/) now supports logging and filtering on header or cookie fields in the [http\_requests dataset](https://developers.cloudflare.com/logs/logpush/logpush-job/datasets/zone/http%5Frequests/).

Create a custom field to log desired header or cookie values into the `http_requests` dataset and Log Explorer will import these as searchable fields. Once configured, use the custom SQL editor in Log Explorer to view or filter on these requests.

![Edit Custom fields](https://developers.cloudflare.com/_astro/edit-custom-fields.Cy4qXSpL_1ma19s.webp) 

For more details, refer to [Headers and cookies](https://developers.cloudflare.com/log-explorer/log-search/#headers-and-cookies).

```json
{"@context":"https://schema.org","@type":"BlogPosting","@id":"https://developers.cloudflare.com/changelog/post/2025-09-03-log-headers-and-cookies/#page","headline":"Logging headers and cookies using custom fields · Changelog","description":"Log Explorer now supports logging and querying header and cookie fields","url":"https://developers.cloudflare.com/changelog/post/2025-09-03-log-headers-and-cookies/","inLanguage":"en","image":"https://developers.cloudflare.com/changelog-preview.png","dateModified":"2025-09-03","datePublished":"2025-09-03","publisher":{"@type":"Organization","name":"Cloudflare","url":"https://www.cloudflare.com/"},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}}
```