---
title: "VDM Site ID Parameter"
slug: "vdm-site-id-parameter"
updated: 2020-04-16T20:52:14Z
published: 2020-04-16T20:52:14Z
canonical: "onpremises.webtrends.help/vdm-site-id-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.

# VDM Site ID Parameter

#### WT.site

`WT.site=siteId` This Visitor Data Mart parameter enables the web site owner to supply a site ID for one or more events when multiple events occur on the same hit. The JavaScript tag generates and sets this parameter to the domain name/Site Id for cross-domain Visitor Data Mart use, enabling users to select only events for a certain ID when querying the database.

Currently, this parameter is not supported in Tag Builder and must be configured manually.