1. Conversion Rate: refers to the proportion of visitors who actually become users through the expected behavior of the website, such as clicks, purchases, registrations, etc.

2. Traffic: refers to the number of visits to the website pages, which is an important indicator to measure the popularity of e-commerce platforms.

3. Head Effect: refers to the fact that the sales of a few products on the e-commerce platform account for a very high proportion of the overall sales. This phenomenon is the counterexample of the "Long Tail Theory".

4. Long Tail: refers to the fact that the sum of the sales of a large number of products with different types and small sales on the e-commerce platform accounts for a very high proportion of the overall sales.

5. SEO (Search Engine Optimization): refers to the technical means of improving the natural ranking of the website on the search engine by optimizing the website structure, content, code, etc. in a planned manner.

6. SEM (Search Engine Marketing): refers to an advertising promotion method that directly recommends e-commerce platforms to potential users by placing targeted advertisements on search engines.

7. CTR (Click Through Rate): refers to the ratio of the number of ad impressions to the number of actual user clicks, and is an important indicator for measuring the effectiveness of advertising.

8. Average Customer Value: refers to the average sales contribution of each customer, and is one of the important indicators for measuring the profitability of e-commerce platforms.

9. Customer Lifetime Value: refers to the contribution of a single user to the e-commerce platform during the entire shopping process on the e-commerce platform, including the amount of consumption, number of consumptions, retention time, etc.

10. Retention Rate: refers to the proportion of users who continue to use the platform after registering on the e-commerce platform, and is an important indicator for measuring user activity and loyalty.