For me, in Ivory, all shared YouTube links look like this. Anyone know what this is about / is anyone else experiencing this?
@[email protected] Youtube recently made a change and stopped serving the video pages when Mastodon (or other software, AFAIK) is requesting it, probably using some fingerprinting. Mastodon builds a link preview based on the page that is served, hence what you are seeing (in German because your server is probably located in a datacenter in Germany, or Youtube thinks it should see german language). We tried to get in touch with people at Youtube, but no success so far.