The debugger outputs a list of all the data and resources that Facebook pulls from your Open Graph object. If there are missing tags or other errors when trying ...
Facebook needs to scrape the page at least once by someone clicking on it to cache the image. Subsequent shares will then be able to display the image.
In this article we explain how to use Facebook's OpenGraph Object Debugger to resolve issues sharing content on Facebook. Scrape URL · Evaluate Results
Facebook will randomly take posts I have shared on a company page and make the preview image blank/white. It is maddening. Here's what I do to replicate.
To see how your markup appears to the Facebook Crawler enter a URL into Sharing Debugger. It will show which meta tags the crawler scrapes as well as any errors ... Using Objects · Getting Started · Specify a Canonical URL · Optimizing