You can't really use Yandex Disk or Google Drive as a proper CDN for hosting static assets like CSS, JS, or images. These services aren't designed for direct web asset delivery and come with limitations like:

No proper HTTP headers for static files. Rate limiting and download restrictions. Lack of custom domains or CNAME support. No edge caching or optimization, which defeats the purpose of a CDN.

Here are some CDNs that have servers in the Russian Federation and are known to be budget-friendly:

Selectel CDN, CDNvideo, Timeweb CDN

Don't use Yandex Disk or Google Drive for static file hosting—it’s not viable as a CDN. Use a proper CDN like Selectel, CDNvideo, or G-Core Labs for Russian delivery and Bitrix compatibility.