GEO & AI search

Welcome-list robots.txt

Definition

A robots.txt posture that explicitly allows AI crawlers across discovery content — product pages, collections, guides, policies — while disallowing transactional and private paths. The deliberate opposite of the publisher default-deny.

Defined in Should You Block AI Crawlers? A Merchant Decision Guide.

Related terms

AI-attributed revenue: Purchase revenue from sessions whose source GA4 can identify as an AI assistant, using last-click attribution within the session. It excludes purchases influenced by AI answers that arrived through Organic Search, Direct or another channel, so it understates AI's total effect.
AI Assistant channel: A channel in GA4's default channel group for visits from AI assistants such as ChatGPT, Gemini, Deepseek, Copilot and Grok. Its rule is that the medium exactly matches ai-assistant. GA4 sets that medium, and the campaign (ai-assistant), when the referrer matches Google's list of AI assistants. Google says the channel excludes its own AI Overviews and AI Mode.
Custom channel group: A copy of GA4's default channel group that you can edit: add channels, change conditions and reorder them. Traffic goes to the first channel whose definition it matches. Standard properties can have two custom groups, 360 properties five, each with up to 50 channels. Google says custom groups can be applied to reports retroactively.
OpenAI Measurement Pixel: OpenAI's browser SDK for ChatGPT Ads. You install a script, initialize it with a Pixel ID created in the Conversions section of Ads Manager, and call oaiq("measure", ...) when a conversion happens, such as order_created for a purchase.
Conversions API: OpenAI's server-to-server endpoint for ChatGPT Ads conversion events. Your backend posts confirmed events, such as a paid order, with a Pixel ID and a separate Conversions API key. OpenAI calls it a more reliable tracking source than the Pixel alone.
oppref: The OpenAI click reference appended to the end of a ChatGPT ad's landing page URL (for example ?oppref=gAAAAAb123). The Pixel captures it and stores it in a first-party __oppref cookie for 30 days; server events should pass the original value unchanged.

All 164 terms

Does ChatGPT recommend you, or a rival?

We run real shopping prompts for your category and show who AI assistants put on the shelf.

Run the AI Shelf Check Commerce GEO