GA4’s New Source Grouping & Hostname Filtering: The Attribution Cleanup Businesses Have Been Waiting For
Google Analytics is rolling out Source Grouping and hostname filtering—two small-sounding changes that can materially improve attribution, cross-channel reporting, and data quality. Here’s what changed, why it matters (especially with AI referrals like ChatGPT and Perplexity), and what SMEs and agencies should do next—with an execution plan you can operationalize inside AYSA.