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1answer
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What do I need in order to have custom thumbnails for posts in my wordpress.com blog?

I have a blog on Wordpress.com. I would like to have it set up in such a way that when I make a post on the blog, I can select an image that I want associated with that post so that every time someone ...
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1answer
870 views

How Facebook chooses substitute link thumbnail if og:image is invalid?

I am curious how Facebook selects a substitute image, when the one specified in <meta property="og:image" /> is considered invalid according to the linter. It is said that if og:image is missing ...