Search the published wine e-labels.
One search covers every participating provider. Start with a product name, a producer or a GTIN, and narrow it with country, category or vintage.
Start with a name
A product or producer name is usually enough. Add a filter only once you get more results than you can read.
Search the GTIN
The 8, 12, 13 or 14 digit number under the barcode takes you to one exact product.
Check the source
Every result names its provider and links to the e-label that provider maintains. If the two disagree, the provider is right.