When you paste a Vidreno link into Slack, X, iMessage, Discord, LinkedIn, Facebook or pretty much any other modern messaging tool, the link expands into a card with your thumbnail, title and description. That's not magic: it's a small standard called Open Graph.
What we put on each video page
Vidreno automatically adds the Open Graph and Twitter Card meta tags to every public video page:
| Tag | Value |
|---|---|
| og:title | The title you set on the video |
| og:description | The description you set on the video |
| og:image | Your thumbnail (the one we generated, or the one you picked) |
| og:type | video.other |
| twitter:card | summary_large_image |
| twitter:image | Your thumbnail |
If you'd like the deep technical reference, the Open Graph protocol site at ogp.me explains every tag.
Why my preview is wrong
Most platforms aggressively cache previews. So if you change a title or thumbnail and then re share the link, you might still see the old preview for a while.
- On Facebook, you can refresh a preview through their sharing debugger.
- On X, the preview tends to update within a day or so.
- On Slack, removing and re pasting the link usually refreshes it.
Make sure your video is public. Private videos return a not found page to social network crawlers, so the preview won't render.
Pre rendering for crawlers
When a known social media bot visits a Vidreno video page, we serve a clean version of the page with the meta tags front and centre, so the crawler can read them without running JavaScript. That's why the previews are usually quick to appear.