AI Ads Attribution Needs Three Separate Tracking Approaches
AI ads attribution in 2026 requires three separate measurement approaches because ChatGPT, Google AI Mode, and Perplexity each use fundamentally different tracking architectures (AI Advantage Agency, 2026). ChatGPT relies on oppref cookies and a Conversions API, Google AI Mode uses the adview_query_id parameter across 547+ ad delivery flows, and Perplexity sends mixed referrer signals that standard analytics tools misread. With 47.5% of desktop CTR now flowing through AI Mode alone (Discovered Labs, 2026), stores running a single tracking approach are flying blind on the majority of their AI-driven traffic.