@tanghus@cheeaun@benjaoming Nothing we’re intentionally or knowingly doing. Another option is that the site had changed by the time our instance made the preview card.
@tanghus@benjaoming if I'm not mistaken, Mastodon doesn't do that anymore — mainly due to some links redirect to completely different page e.g. YouTube links that redirects to consent pages.
I'm not sure I get what you mean @benjaoming The preview has been generated, but the link in it, when shown on phanpy.social, has the unresolved link. Are the links maybe resolved post preview generation? @cheeaun
@cheeaun@tanghus exactly -- when it's the first time that your instance sees the link, there's no preview. But the moment that you post the link, you'll see that the preview card shows up after a reload. I think most instances just need like a second to have generated it.
@tanghus@cheeaun@benjaoming Imagine I post a link to a site. The moment I do, this instance fetches that page to make a preview.
Then the site’s author makes some changes to it.
A few hours later, my toot makes its way to another site. When that site fetches the page to make the preview, it’s seeing the new, updated content and makes a different preview card for it.
Instead of deliberate changes, it could be all sorts of automation on the website.