Open one product page
Select the exact Shopify or WooCommerce product variant you want to check, then open the extension from the Chrome toolbar.
Chrome extension · Version 0.1.7 · Private beta
Check the product page before feed resubmission.
Merchant Match Preflight compares the selected variant across the visible page, product structured data, and one optional local feed row. It turns supported differences into a fix-and-rescan report.
No Merchant Center credentials, account access, or catalog crawl. The public Chrome Web Store install link is not live yet.
User-initiated accessThe extension reads only the product page you choose to scan
Product data stays localPage, structured-data, and feed contents are not transmitted
Measurement is optionalConsent-based pseudonymous telemetry is off by default
Actual extension workflow
One current page. One selected variant. One repair loop.
Scanning is performed by the installed Chrome extension. This website explains the workflow; it does not scan a URL entered into a web form.
Scan the current tab
A user-initiated scan reads supported visible product fields and Product or ProductGroup structured data from that page.
Add one feed row if needed
Optionally paste or import one local CSV, TSV, or JSON row for the same selected variant. No Merchant Center login is required.
Fix, rescan, and export
Review field-level findings, correct the source data, and run a repair scan to verify whether the supported mismatch was resolved.
Illustrative extension output
A report designed for a fix-and-rescan loop
This fictional example demonstrates the report structure. It is not customer evidence and does not imply Merchant Center approval.
MMP-SAMPLE · BLUE / LARGE
2 critical findingsDemo running shoe
FieldVisible pageStructured dataFeed row
Price$79.00$89.00$79.00
CurrencyUSDUSDUSD
AvailabilityIn stockIn stockOut of stock
Next action
Align the Product Offer price and confirm which availability state is authoritative for the selected variant. Then scan again.
Supported boundary
Preflight findings, with explicit limits
Unsupported, ambiguous, and low-confidence pages return a non-pass state rather than a clean result.
Supported price, sale price, currency, availability, title, brand, SKU, GTIN, MPN, and selected-variant conditions.
Compact scan evidence is retained for up to 30 days, capped at 50 records, and can be exported or cleared at any time.
The extension does not inspect Merchant Center account state, checkout behavior, policy status, or every possible storefront.
Problem evidence
Why this comparison exists
Category evidence supports the workflow. It does not prove demand for this exact extension or guarantee that every mismatch will be detected.
Primary source ↗Google: troubleshoot price and availability mismatches
Google says product-source, landing-page, and structured-data values should agree.
Primary source ↗Google: Product structured dataPrice, availability, and variants are represented in Product and Offer markup.
Primary source ↗Google: structured-data testing toolsRich Results Test and Schema Markup Validator validate markup, not a locally supplied feed row.
Private beta
Test the extension on a supported product page.
Beta access is for ecommerce operators, feed specialists, agencies, and technical SEO teams willing to test a real fix-and-rescan workflow.