More shoppers now start product discovery in TikTok's search bar, and TikTok Shop surfaces products through search, product tabs, and shoppable videos. For cross-border sellers this is a rare opening: the ranking mechanics are younger and less saturated than Amazon's. The sellers who treat TikTok Shop like a search engine — not just a feed — win the cheap traffic.
Three surfaces matter: video search (keywords in caption, on-screen text, and spoken audio), product search (your product title and attributes in the catalog), and category browse (correct category + attributes). Optimization is split across all three — a great product page with lazy video captions leaves half the traffic on the table, and vice versa.
Put your primary keyword in the first 20 characters of the caption and again in the on-screen text overlay. Keep captions under 150 characters, add 3–5 relevant hashtags (mix broad + niche), and mention the product name out loud in the first 3 seconds so the audio transcript carries it. Post consistently — recent engagement is a strong ranking signal in TikTok search.
Search ranking compounds on top of a listing that converts — views mean nothing if the product page doesn't sell. Write a clean, benefit-led TikTok Shop listing (title, bullets, description) first, then layer keyword research and video captions on top.