Ideal Open Graph Image Meta Tag Size (og:image) For Facebook & Reddit Sharing - H3XED
Information on effectively using the og:image meta tag, including what dimensions to make your image. Ideal for sharing on both Facebook and Reddit.
19 Aug 2014 ... Here is more information on why you should use a 1200 x 1200 (or larger) square image. Facebook recommends 1200 x 630 pixels for the og: ...