Confirm the exact version
Check the fragrance name, concentration and bottle size together. An EDT and EDP with similar packaging are different products, and many fragrance lines have several bottle sizes or flankers.
Compare the product and its packaging
Look for consistent printing, secure packaging and details that match the exact official version. A barcode or batch code is useful supporting information, but it should not be treated as proof on its own.
Check the seller's product information
A credible listing should state the current price, size, concentration and whether an image is representative. Ask how delivery issues are handled and keep your order confirmation.