# Catalog Truth

> Free, deterministic check for Shopify stores: compares the price, stock, structured data, GTINs and policy pages a store serves with the store's own public product data. These mismatches are a common cause of Google Merchant Center disapprovals and "misrepresentation" suspensions.

- Check a store (HTML): https://catalogtruth.tryneverclosed.com/scan?store=example-store.com
- Check a store (JSON, for agents): https://catalogtruth.tryneverclosed.com/v1/scan?store=example-store.com
- How it fetches (one store, at most 29 requests, honest user agent): https://catalogtruth.tryneverclosed.com/about
- Guide: Shopify "Mismatched product price" in Google Merchant Center: how to find the cause: https://catalogtruth.tryneverclosed.com/guides/shopify-google-merchant-center-price-mismatch
- Guide: Missing or invalid GTIN on Shopify products in Google Merchant Center: what to do: https://catalogtruth.tryneverclosed.com/guides/shopify-gtin-barcode-google-merchant-center
- Limits: up to 20 product pages per scan; one scan per store per 30 minutes; no Merchant Center access.