analytics-dictionary / term / tracking & measurement

Cross-domain tracking

Cross-domain tracking lets analytics treat a visit that spans several domains as one session.

Written by Reflective Data experts · updated Oct 5, 2026

Without it, a visitor who moves from your marketing site to a checkout on another domain appears as a new user, and the original source is lost. Linking the domains passes the client identifier along in the URL.

It is a common cause of inflated self-referrals and broken attribution after checkout.

Attribution Referral traffic Session

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Keyword

A keyword is a word or phrase that people type into a search engine, and that…

custom-dimension.md

Custom dimension

A custom dimension is an extra attribute you register in your analytics tool so it can…

server-side-tagging.md

Server-side tagging

Server-side tagging sends data from the browser to a server you control, which then forwards it…

ccpa.md

CCPA / CPRA

The CCPA, expanded by the CPRA, is California privacy law giving residents rights over their personal…

channel-grouping.md

Channel grouping

Channel grouping organises traffic sources into marketing channels such as organic search, paid search, email and…

impression.md

Impression

An impression is each time an ad, a listing or a piece of content is displayed…

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