---
title: "HTTP Header Parameter"
slug: "http-header-parameter"
updated: 2020-04-16T20:41:36Z
published: 2020-04-16T20:41:36Z
canonical: "onpremises.webtrends.help/http-header-parameter"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://onpremises.webtrends.help/llms.txt
> Use this file to discover all available pages before exploring further.

# HTTP Header Parameter

You may want to access custom HTTP request headers. These headers can be inserted by third-party products such as load balancers, application servers, or web server plug-ins. This parameter is assigned the value of the specified HTTP header, which can then be referenced in a Webtrends custom report. 

#### WT.hdr.HTTP Header
`WT.hdr.HTTP Header=Value`
If the header is present in the incoming request, the header name is appended to `WT.hdr`. and the header value is assigned to the value. For example, suppose that a customer wants to log the `Accept: `header, and it comes in as `Accept: */*`. The resultant parameter would be `WT.hdr.Accept=*/*`. Note that values are URL encoded.