In a word, the search ranking of Amazon products is determined by A9 algorithm, which helps users choose the most relevant results from Amazon product pool, so A9 algorithm is very important for Amazon sellers.
Extended data
The principle of A9 algorithm
The principle of Amazon A9 algorithm is to extract relevant results from a large number of "catalogs" of Amazon product list, and then classify these results according to the instructions that are "most relevant" to users.
As a seller, you should understand that the first principle of Amazon is to maximize the benefits of buyers. Amazon will track customers' every move on Amazon (including the position where the mouse stays on the page, which will be recorded). Finally, Amazon will refer to the collected tracking data and make a series of optimizations to maximize the buyer's experience.
References:
Amazon University-Amazon A9 Algorithm