New og:image size for Facebook share?

Question

Facebook recently changed image sizes for ads, and link posts. This affects also to meta property=\"og:image\". What is new optimal size for og:image

Answer 1

I'm using the minimum image size (200 x 200) and getting good results. Take a look:

https://developers.facebook.com/tools/debug/og/object?q=origgami.com.br

This squared size is better than rectangles because it is the format that appears on facebook comments. The rectangle format gets cropped.

This size is on facebook documentation

Answer 2

Tried to get the 1200x630 image working. Facebook kept complaining that it couldn't read the image, or that it was too small (it was a jpeg image ~150Kb).

Switched to a 200x200 size image, worked perfectly.

https://developers.facebook.com/tools/debug/og/object?q=drift.team

Answer 3

Relying on the PDF that @CBroe posted earlier:

For best og:image results (retina ready & without being cropped) with the current Facebook Standard use:

Size: minimum 1200 x 630px

Ratio: 1.91:1