How to Choose a Custom Image for Your Website Link on Facebook
When you share a link to your website on Facebook, the platform automatically generates a preview. This preview includes a title, description, and thumbnail image. Facebook pulls this information using Open Graph tags, which tell social networks what content to display.
By default, Facebook typically uses the first image it finds on the page. If you want more control over what appears, you can adjust your page content and refresh Facebook’s cached version.