Smooth CDN Connector

Description

Smooth CDN Connector lets you sync, optimize, offload, and deliver WordPress Media Library assets through Smooth Bundle CDN without changing how editors use WordPress.

Keep working with the standard Media Library while selected images, downloads, generated image sizes, and supported site assets are synced to Smooth Bundle and served through CDN URLs.

Use it to reduce local media storage, improve asset delivery, manage protected files, restore offloaded assets when needed, and keep better control over media used across your WordPress site.

The plugin is focused on real WordPress files and assets: uploads, generated image sizes, selected Media Library files, and supported JS/CSS assets from active themes and plugins.

For REST API acceleration, use Smooth API Accelerator instead.

Useful for

  • WordPress sites with large or growing Media Libraries
  • Agencies managing media-heavy client websites
  • Sites that want to offload selected media from local hosting
  • Projects that need CDN delivery without changing the existing WordPress workflow
  • Sites that need protected delivery for selected files

Features

  • CDN delivery for selected WordPress media and site assets
  • Media offload with restore support
  • Automatic URL rewriting for synced media and supported site assets
  • Support for uploaded media files and generated image sizes
  • Manual and scheduled sync
  • Automatic re-sync when attachments change
  • Protected asset delivery with access management
  • Unused assets view based on synced assets cross-checked against Smooth Bundle usage logs
  • Support for selected JS/CSS assets from active themes and plugins
  • Media Library based asset management directly in wp-admin
  • Controlled rollout, so assets can stay disabled, sync only, use rewritten URLs, or be offloaded

External services

This plugin connects to Smooth Bundle to authenticate the site, upload and delete synced media assets, manage protected asset access, fetch account and usage information, and optionally restore offloaded files from Smooth Bundle URLs.

When you connect the plugin, it sends your site domain to Smooth Bundle so the service can authenticate and prepare the connection.

When you sync media, it sends selected files and related asset metadata such as filenames, paths, hashes, protection settings, and project identifiers to Smooth Bundle so the assets can be uploaded, updated, delivered, and managed.

When you revoke, grant, or inspect protected asset access, it sends the relevant project identifiers, access identifiers, recipient email address, selected asset paths, and optional expiration date to Smooth Bundle to manage protected delivery.

When local offload restore is used, the plugin downloads the previously synced asset file from its Smooth Bundle delivery URL back to your WordPress uploads directory.

This service is provided by Smooth Bundle:
Terms of Service: https://smoothbundle.com/terms
Privacy Policy: https://smoothbundle.com/privacy

License

GPLv2 or later

Reviews

There are no reviews for this plugin.

Contributors & Developers

“Smooth CDN Connector” is open source software. The following people have contributed to this plugin.

Contributors

Translate “Smooth CDN Connector” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.4.4

  • Maintenance update.

1.4.3

  • Improved media upload speed.

1.4.2

  • Improved admin card layout consistency.
  • Improved media upload chunking and sync retry handling.

1.4.1

  • Improved account storage limit messaging and guest upgrade flow.
  • Improved background sync status visibility.
  • Improved upload-triggered image sync timing.

1.4.0

  • Replaced asset amount quota display with account storage support.

1.3.2

  • Fixed collaborator permission keys sent to Smooth Bundle.

1.3.1

  • Restored the Smooth Bundle account connection button on the settings screen.

1.3.0

  • Rebranded from Smooth CDN to Smooth Bundle.

1.2.3

  • Updated plugin catalogue description.

1.2.2

  • Improved sync lock expiration handling.

1.2.1

  • Hardened synchronization and unsync process handling.

1.2.0

  • Added a guided setup wizard for first-time plugin configuration.
  • Adjusted synchronization process.

1.1.2

  • Small bug fixed.

1.1.1

  • Improved restore asset filtering for media variants that still belong to existing WordPress attachments.

1.1.0

  • Added configurable CDN deletion sync for Media Library deletions.
  • Added a Restore assets view for CDN assets missing from the WordPress Media Library.
  • Improved restore handling for original asset downloads and image metadata.
  • Improved media offload handling for WordPress original and scaled image files.

1.0.6

  • Adjusted restore for offloaded protected assets.

1.0.5

  • Removed project level tokens.

1.0.4

  • Fixed SVG bug.

1.0.3

  • Added support for uploading additional video file formats.

1.0.2

  • Fixed the Unused assets list so unsynced assets are no longer shown there.

1.0.1

  • Refreshed the plugin readme to reflect the current feature set and positioning.

1.0.0

  • Initial release.