this post was submitted on 24 Nov 2024
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What determines post thumbnails? (lemmy.world)
submitted 1 day ago by ApollosArrow@lemmy.world to c/voyagerapp@lemmy.world
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Sometimes I will post a link and no thumbnail seems to be pulled from the link. Is this a case by case basis or do I need to do something else?

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[–] Cris16228 5 points 1 day ago* (last edited 1 day ago) (1 children)

If I'm not wrong, images, like in every social, come from the page itself and are scraped (or not?) from the og:image or og:twitter

If you share any link and open it on desktop and inspect the page you can see at the beginning the og:image which is the same you see in the posted link. Example:

The link I sent above has this image and if you share it you'll see that image

[–] ApollosArrow@lemmy.world 1 points 23 hours ago* (last edited 22 hours ago)

I’ve used instagram links and kickstarter like this one.

https://www.kickstarter.com/projects/soulscircuit/pilet-opensource-modular-portable-mini-computer

And someone gave this for me to use on a lemm.ee instance, but it wouldn’t load on a lemmy.world instance. https://files.catbox.moe/qtxxrk.mp4 when I tried using the same website elsewhere

I just want to get into doing more posts, but I am confused on how to get consistent visual images to load on timelines from articles, general website thumbnails, gifs and videos.