Change the image in a Baidu Snapshot
How to change the image used in a Baidu Snapshot
Baidu automatically selects an image at random from a web page. You usually cannot precisely control which image Baidu crawls. However, if your site has sufficient authority—for example, it has been online for one to two years and has a good indexing history—you can use the Baidu Ziyuan Platform to specify the displayed image.
To get started, log in to the Baidu Ziyuan Platform (https://ziyuan.baidu.com). After you add and verify your website, navigate to site properties to upload and configure your site logo.
In the navigation pane on the left, under the search appearance group, click site properties. In the Brand Information area, you can view and update the site logo. You must submit two image sizes: 121×75 pixels and 200×133 pixels.