Shelf checks start with a product and location
Use availability and price checks to inspect supported readings for a specific brand or product. Review the source, location and observation date before drawing a conclusion. No recent reading and a measured unavailable state mean different things; neither should be silently replaced with the other.
Website tools help prepare your pages
Use the metadata, structured-data and llms.txt tools to draft a starting point for your own site. Review generated text and markup against the page’s actual content before publishing. A valid file or descriptive title does not guarantee indexing, search visibility or citation by an AI assistant.
When a single check is not enough
Use a guide to plan a broader comparison, data for structured analysis, a report for a bounded interpretation, or a watch for a repeated change condition. Use these free checks for a focused question. Any later data delivery should have its own rate or quote review.