How long is Facebook caching the sharing thumbnails?

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情深已故 2021-01-11 15:19
How long is Facebook caching the sharing thumbnails? I\'ve added a custom thumbnail for my page using:

      
      
        
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                   醉酒成梦
                                             
                
                
                (楼主)
            
              
              
                2021-01-11 16:08
              

            
            
                        
FYI the FB linter link above doesn't work anymore. This seems to do the trick though:

https://developers.facebook.com/tools/debug
    
             
                                                        
            
            
              
                
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