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Sharing Debugger lets you preview how your content will look when it's shared to Facebook and debug any issues with your Open Graph tags.
27 kwi 2012 · For manual cache emptying, add ?v=2 or some arguments to your url, then click on "add a new url" and launch the Facebook debugger (https://developers.facebook.com/tools/debug/). Now, retry with the original url (without ?v=2), and the image appear.
There are three ways to avoid this and have images render on the first Like or Share action: Pre-cache the image with the Sharing Debugger: Run the URL through the URL debugger to pre-fetch metadata for the page. This can also be used to update the image for a piece of content.
Access Facebook Developers tools like Graph API Explorer, Access Token Debugger and more.
A Guide to Sharing for Webmasters. This document describes how you optimize web-hosted content that people share to Facebook, regardless of whether it's shared from the desktop or mobile web or a mobile app. This document provides info about: Open Graph markup. Testing Your Markup. Test Whether Facebook User-Agent Is Handled Properly.
22 gru 2023 · You can use the official Sharing Debugger tools provided directly by the social networks to see the information that is used when your website content is shared. You can also use these tools to reset the preview cache which includes the thumbnail image, title, etc: Facebook Debugger: https://developers.facebook.com/tools/debug/
4 lis 2013 · I'd recommend always have a look at https://developers.facebook.com/tools/debug/sharing to validate your properties as Facebook often changes it's policies, compliances and API. If you work with Messenger bots or other FB apps, you may need the property fb:app_id for link images to work in Whatsapp.
