Alibaba impression refers to the number of times an advertisement is displayed to users within a certain period of time on Alibaba's e-commerce platform. Specifically, when an advertisement on Alibaba appears on the user's screen and is successfully loaded, it is counted as an impression.

Impression is an important indicator in advertising marketing, which can reflect the exposure of an advertisement on an e-commerce platform. Generally speaking, the higher the impression, the more users see the advertisement on the Alibaba platform, and the higher the exposure of the advertiser's products or services, which helps to increase brand awareness and product sales.

It should be noted that impression is not the same as the number of clicks or conversions of the advertisement, it only reflects the number of times the advertisement is displayed on Alibaba's e-commerce platform. In order to improve the click-through rate and conversion rate of advertisements, more optimization and adjustments need to be made in the design, positioning, and delivery of advertisements.