​{{REF}} - Full page URL where ads were shown.
​{{KW}} - Keywords from the website page.
​{{DOMAIN}} - Top domain where ads were shown.
​{{SUB}} - ID of the spot that displayed your ad.
​{{LANG}} - Visitor's main language.
​{{IP}} - Visitor's IPv4 address.
​{{UA}} - Visitor's User-Agent
​

​{{SECCHUAARCH}} - Sec-Ch-Ua-Arch

{{SECCHUABITNESS}} - Sec-Ch-Ua-Bitness

{{SECCHUAMOBILE}} - Sec-Ch-Ua-Mobile

{{SECCHUAMODEL}} - Sec-Ch-Ua-Model

{{SECCHUAPLATFORM}} - Sec-Ch-Ua-Platform

{{SECCHUAPLATFORMVERSION}} - Sec-Ch-Ua-Platform-Version

{{SECCHUA}} - Sec-Ch-Ua

{{SECCHUAFORMFACTORS}} - Sec-Ch-Ua-Form-Factors

{{SECCHUAFULLVERSION}} - Sec-Ch-Ua-Full-Version

{{SECCHUAFULLVERSIONLIST}} - Sec-Ch-Ua-Full-Version-List

{{SECCHUAWOW64}} - Sec-Ch-Ua-Wow64

​{{GEO}} - country code (2 digits)
​{{ID}} - unique id of each ad impression
​{{UUID}} - unique id of each visitor ( unique for IP+UA + Spot)