Methodology

This pilot compares identical visible product pages with a Schema.org baseline against the same baseline plus an additional, locally-contextualised GS1 Web Vocabulary graph.

Four synthetic products: two food products and two wearable products.
Each product has one control and one treatment URL.
Phase A uses direct URLs and keeps product pages crawlable but noindex; Phase B releases the frozen pages for open-web discovery.
Visible content, metadata, canonical policy, language, and prompts are held constant within each pair.