"Delete Published Site Content" feature will purge all contents from Shifter CDN without deleting any artiafcts from your accout.
How to delete published contents
1. Login to Dashboard
2. Click Site
3. Navigate Settings page
4. Scroll down to "Danger zone"
5. Click [Delete] button
6. Input DELETE in the blank then click [Delete] button
7. Contents are purged from CDN
8. Access your website and confirm all contents are purged
If you want to publish artifact, just click [Publish] button on your artiafct.
Fore more details, refer another document: