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Image file behavior

Default behavior of image files (e.g., jpg, png, gif) that are located in a site’s /uploads/ directory, served by the VIP File System:

  • All images are automatically converted and served as next-gen formats, including *.webp files, to compatible browsers. Conversely, uploaded *.webp files are automatically converted and served as *.jpg files to browsers that are not compatible with *.webp. As a result, uploading *.webp files is not necessary, nor is explicitly referencing them in a theme.
  • The default maximum upload size for media files is 1GB. For specific use cases it is possible to upload a file size of up to 2GB, but this capability must be requested from VIP Support.
  • Image files are served relative to the home_url of their site, so images will be on the same domain as a site. This differs from Photon, which serves files through a subdomain of (such as
  • Separate intermediate image files are not created for images uploaded to a WordPress media library. Instead, requested image sizes are dynamically generated using a built-in service similar to Photon.
  • Image metadata is not stripped by default, but logic can be added to strip image metadata on upload.

Last updated: December 04, 2023

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  • WordPress