DocumentationAnalyticsStreaming media services guide

Site ID

Last update: May 15, 2026

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This page covers the Site ID reporting dimension. See Site ID for how to collect this variable.

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The Site ID dimension reports the ad site identifier (typically an ID from your ad-server platform). Use the dimension to break out engagement by ad placement site.

How this dimension is populated

Site ID is set by the player on every ad start event.

Reporting system
Source
Adobe Analytics
Create a Processing rule that maps a.media.ad.site to an eVar.
Customer Journey Analytics
mediaReporting.advertisingDetails.siteID
Data feeds
evar1-evar250, post_evar1-post_evar250 (the eVar that your processing rule maps a.media.ad.site to)
Audience Manager
c_contextdata.a.media.ad.site

Dimension items

Each item is the literal site ID value reported on ad start.

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