Closed remy-actual closed 10 years ago
from https://developers.facebook.com/docs/sharing/best-practices#images "Use images that are at least 1200 x 630 pixels for the best display on high resolution devices. At the minimum, you should use images that are 600 x 315 pixels to display link page posts with larger images. "If your image is smaller than 600 x 315 px, it will still display in the link page post, but the size will be much smaller." Smaller size is actually desirable for default logo image.
ref Best Practices for image width and height: https://developers.facebook.com/docs/sharing/best-practices