well i think it’s only for sites on the whitelist:
https://codex.wordpress.org/Embeds
Is it possible to add as many whitelisted sites as you want?
How would I go about adding that site for example?
Thank you for responding, @ubernaut!
i don’t think you’re following here the urls that automatically embed content can only be from that list of pre approved sites you should read the whole page it clarifies how the whole thing works. Glad to be a help!
edit: i guess you can add to the whitelist but i believe it above my skill level explanation for that is towards the bottom of that page.
thank you @chouf1 and @ubernaut!