Titles written in US English — missing UK search queries
UK buyers search using British English terms: "jumper" not "sweater", "trainers" not "sneakers", "torch" not "flashlight", "nappy" not "diaper". An Amazon.co.uk listing title written in US English is not matching the exact search queries British buyers type. The A9 algorithm ranks on keyword relevance — a title that uses the wrong English for the market is missing ranking signals for a significant portion of UK buyer search volume.