Field notes on product-level AI visibility.
Posts on ChatGPT citation behavior, Perplexity Shopping data, schema and metafields, measurement, and agentic checkout. Written by the eCommerce Insights research team; updated as the engines change.
Shopify just made every store agent-readable.
Five agent endpoints are live by default — llms.txt, agents.md, a UCP profile. What the defaults say, and the brand layer worth adding.
Platforms · 2026-06-10Artificial intelligence search engines: the list that matters.
Eight AI search engines on one ruled table — live web access, shopping surfaces, citation behavior — with the ecommerce read for each.
Platforms · 2026-06-10AI model knowledge cutoff dates: why they matter less than you think.
Vendor-published cutoffs for ChatGPT, Gemini, Claude, Copilot, and Perplexity — and the live-retrieval column that decides product answers.
Data · 2026-06-10Does ChatGPT give everyone the same answer?
Sampling, memory, retrieval, geography, model routing — five reasons your visibility is a distribution, not a fact, and how to sample it.
Agentic · 2026-06-10Agentic checkout: what brands should do now.
Draft carts are live, ACP and UCP are in pilot. The staged read, and the no-regret work that pays off at every stage.
Technical · 2026-06-10Robots.txt for AI crawlers: who to allow and why.
Training bots, answer bots, and action agents — what each user-agent controls, plus a starter policy for ecommerce.
Strategy · 2026-04-18Your best seller is invisible in ChatGPT.
A thirty-minute audit: five prompts, a short rubric, and a triage list for the PDPs that need work this month.
Strategy · 2026-04-18Brand-level AI tracking is missing your revenue.
Brand mentions are a comms metric. The SKU is the revenue unit — and brand tracking cannot see which SKUs are silent.
Data · 2026-04-18Perplexity Shopping citation patterns.
Citation counts, source mix, and where D2C PDPs lose to review sites — from a 200-query manual sample.
Platforms · 2026-04-18ChatGPT vs Google AI Overviews for D2C.
Who is asking, how each engine cites, what wins in each, and where the first hundred hours of effort go.
Technical · 2026-04-18How AI engines pick which products to cite.
Retrieval, grounding, ranking, and source-trust signals. Mechanism first, no hand-waving.
Technical · 2026-04-18The schema your product pages need for AI answers.
Product JSON-LD field by field, the fields most PDPs leave empty, and a complete working example.
Technical · 2026-04-18Shopify metafields for AI search.
Which metafields matter, how to structure them, and how they flow into Product JSON-LD and llms.txt.
Data · 2026-04-18Measuring AI visibility: what actually matters.
The per-SKU-per-engine primitive, the rollups that mislead, and the dashboard a merchandiser can act on.
Strategy · 2026-04-18The D2C playbook for AI search, 2026 edition.
Seven opinionated steps ranked by return on effort, honest about the parts of GEO practice still forming.
Strategy · 2026-04-18Why GEO differs from SEO.
Five similarities, five differences, who each serves, and why most teams need both disciplines funded.
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