WordPress thumbnails, also known as featured images, play a crucial role in enhancing the visual appeal and usability of a WordPress website. Thumbnails are small, scaled-down versions of images that are associated with posts or pages. They are often displayed alongside post excerpts or on archive pages, providing a visual representation of the content.
WordPress automatically generates different thumbnail sizes based on the theme's specifications, allowing website owners to choose the appropriate size for various sections of their site. These thumbnails can be customized through the WordPress dashboard, enabling users to crop, resize, or select a specific area of an image to be displayed.
By utilizing thumbnails effectively, website owners can improve the overall aesthetics and user experience of their WordPress sites. In rare cases, the thumbnails of images in the WordPress media library will be blank, appearing as if the thumbnails are missing. This can be fixed by regenerating the thumbnails.
Regenerate in Dashboard
- Log into the WordPress Dashboard
- Install the Regenerate Thumbnails plugin by Alex Mills
- Once activated, navigate to Regenerate Thumbnails under the Tools menu
- Select any options desired and then click Regenerate Thumbnails
- Once the progress bar completes, you'll be presented with an All done message as well as a log of all successfully regenerated images
TIP: If there are any errors, try regenerating the thumbnail for the specific images by navigating to Media>Library, selecting the affected image, and selecting Regenerate Thumbnails.
Regenerate Using WP-CLI
- SSH into the server
- Navigate to the site's document root
- Run the following command
wp media regenerate --yes
TIP: For more information, review the WordPress CLI Documentation.
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