How I do populate a specific file to the CDN instantly, instead waiting for visitors to request it?
You can do this with the CDN prefetch feature. Please note this is only recommended for large files.
To prefetch content:
1. Go to the CDN Resource menu.
2. Click your CDN Resource.
3. On the screen that appears click the Prefetch tab.
4. In the input field insert paths of the CDN Resource. You may insert only one path per line.
5. Click the Prefetch button.
Take note that it may take up to 5-10 minutest to populate the requested files on the CDN.