How to update published link previews
When you publish links to Facebook, LinkedIn and Twitter, previews for your links are automatically generated. This is achieved by scrapping your links and extracting metadata from them. Once extracted, this metadata is cached which could lead to the wrong images or descriptions being displayed. Here’s how to update these caches.
How to clear the Facebook cache
Open https://developers.facebook.com/tools/debug/, paste a link, click Debug and, finally, click Scrape Again.
How to clear the LinkedIn cache
Open https://www.linkedin.com/post-inspector/, paste a link and click Inspect.
How to clear the Twitter cache
Open https://cards-dev.twitter.com/validator, paste a link and click Preview card.