AI traffic attribution, straight from the buyer.
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more AI-driven revenue found by post-purchase surveys than by UTM and AI referrer tracking
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The problem
Benchmark
What % of sales is AI actually driving?
158 ecommerce brands · $10M to $2B GMV · weekly, Nov 2024 to May 2026
AI share of GMV. Extrapolated assumes survey respondents represent non-respondents. Source: Fairing AI attribution study, 2026.
Source: Fairing study of 158 ecommerce brands, published Aug 27, 2026. Click attribution = UTM source matching plus AI referrer URLs.
How it works
AI attribution
Fairing lines up each buyer’s answer with the last click, so AI-recommended orders stop hiding in Google Ads and Direct.
of orders tied to AI discovery had no last-click attribution at all.
Source: Fairing LLM benchmark, Q3 2025
AI attribution methods
Why Fairing
1
Ask which tool, or which prompt
2
See what each AI tool’s buyers are worth
3
Answers land where you report
Works with your AI tools
Ask Claude or ChatGPT about your survey data with the Fairing MCP, or sync answers to BigQuery, Snowflake or Redshift.
Customer story
Shopify App Store reviews
United States · Shopify App Store, September 2026
★★★★★
We already ask how buyers heard about us, with an AI option. What changes?
An AI option tells you AI was involved. Advanced Attribution adds one follow-up that asks which AI tool or what the buyer was looking for, with order revenue on every answer. Our team adds it to the survey you already run.
How do I know if AI tools are driving sales?
Ask buyers after checkout how they heard about you, with “AI recommendation” as an option. One follow-up then asks which AI tool, or what they were looking for. Across 158 ecommerce brands, surveys captured 7.5× more AI-influenced orders and 10.6× more AI-driven revenue than UTM and AI referrer tracking (Fairing, Nov 2024 to May 2026).
How do I track AI traffic in GA4?
GA4 records AI visits that arrive with a referrer or a utm_source, such as chatgpt.com or perplexity.ai. Many buyers instead read an answer, then search your name or type your URL, so the order lands in Google or Direct. In Fairing’s Q4 2025 benchmarks, most LLM-attributed orders had no last-click UTM, and when one was present it pointed at Google roughly 20% of the time. A post-purchase survey catches those orders by asking the buyer.
Is Fairing an AI visibility tool?
No. Fairing doesn’t track prompts, citations or share of voice, and it can’t prove a platform caused the order. It asks buyers who already ordered which AI tool, or what they were looking for, so it never hears from shoppers an AI talked out of buying. Track the revenue buyers credit to AI weekly next to your visibility score to see whether GEO and AEO work is paying off, and run a holdout test to read lift.
Which AI platforms can buyers name?
You choose the list, under AI recommendation. Most DTC brands start with ChatGPT, Google Gemini, Perplexity, Claude, Microsoft Copilot and Meta AI.
How accurate is a buyer’s answer about AI?
It reflects what buyers remember, so some mix up platforms, and it covers only the buyers who answer. Read it as directional on cause. It doesn’t measure lift on its own, so pair it with GA4, a holdout test and your MMM.
Does Fairing work for ecommerce brands that aren’t on Shopify?
Yes. Fairing runs on Shopify’s Thank You and Order Status pages and Shopify POS, plus WooCommerce, Salesforce Commerce Cloud, Recharge and headless stores through a Web SDK.
