I just copy-paste useful info from the old forum :
Create RSS feeds from Website
Rss-bridge is a PHP project capable of generating ATOM feeds for websites which don’t have one.
It’s an open source self hosted solution.
You need to develop your own bridge if the website is not included in the list.
See here for more details about that :
If you use the Facebook bridge try not to refresh the feed often or Facebook will ask for a captcha to show the content.
For those interested in having youtube, vimeo as RSS :
Replace USERNAME, CHANNELID and PLAYLISTID
YouTube RSS Feed URLs:
https://www.youtube.com/feeds/videos.xml?user=USERNAME https://www.youtube.com/feeds/videos.xml?channel_id=CHANNELID https://www.youtube.com/feeds/videos.xml?playlist_id=PLAYLISTID
For Vimeo :
https://vimeo.com/channels/CHANNELID/videos/rss http://vimeo.com/USERNAME/likes/rss http://vimeo.com/USERNAME/videos/rss