Have you ever tried to post a link to your content on Facebook only to realize that an image is missing or the description isn’t there?
Naturally, you go back to your edit your article and add the missing content. Then you head back to Facebook and try to post the link. What, Facebook still isn’t showing the new content? Why? It is caching the Open Graph data!
How can you get Facebook to update cache data on a link?
- Go to the Facebook Open Graph debugger (https://developers.facebook.com/tools/debug)
- Enter the URL of your link and click Debug
- Verify that the updated content is being fetched by Facebook in the “Object Properties” area
- If the new content is there, return to Facebook to add your link
In my experience this process has updated the Open Graph cache on Facebook every time.
Disclaimer: this is not a documented process by Facebook.
What is Open Graph?
Learn more at http://opengraphprotocol.org/