---
description: Log Explorer now supports logging and querying header and cookie fields
title: Logging headers and cookies using custom fields
image: https://developers.cloudflare.com/changelog/post/2025-09-03-log-headers-and-cookies/og.png?v=b84d2a9985d08a82
---

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September 3, 2025

## Logging headers and cookies using custom fields

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2025-09-03-log-headers-and-cookies/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[Log Explorer](https://developers.cloudflare.com/observability/logs/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_requests/).

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/cdn-cgi/image/onerror=redirect,width=1790,height=404,format=webp/_astro/edit-custom-fields.Cy4qXSpL.png)

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

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