Invisible demotions on AliExpress can be judged from the following aspects:

1. Pay attention to changes in product rankings: If the product ranking in the search results page drops, it may be due to the impact of invisible demotions.

2. Observe the overall rating of the store: If the overall rating of the store drops, it may also be due to the impact of invisible demotions.

3. Check the product details page: If the keywords, descriptions and other information on the product details page are blocked or deleted, it may also be due to the impact of invisible demotions. In order to avoid being affected by invisible demotions, sellers need to abide by the rules of AliExpress, ensure the quality of the products and the accuracy of the descriptions, and avoid malicious clicks and false propaganda. At the same time, sellers also need to pay close attention to the performance of the store and products. If there are any abnormal situations, they need to be handled in a timely manner to improve the store's credibility and customer experience.