I did a quick check whether the embed functionality is working these days. My results:
- Instagram: no
- Twitter: yes, quite nicely
- Tumblr: not really
- Mastodon: not really
- Friendica: no
The tumblr result surprised me, it is supposed to work. It is legal and not a copyright breach to include a Twitter embed of a post on your own site and it supports the poster without e.g. stealing an artist's work.
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Gidi Kroon
in reply to Gidi Kroon • •This was while testing with wordpress and its standard embed flow. When using iframely though it's quite different. (iframely is a commercial embed api provider and you can test urls at iframely.com/embed)
There Instagram works because they have a valid api key for it. Tumblr also works as it should. Surprisingly Mastodon also gets a rich embed card. Not so surprisingly anymore when I saw that their marketing docs literally mention that they include support for:
Which leaves only Friendica, which gets the default fallback of a standard summary card.