Thank you, Boone. Yes, I just examined the custom-functions file and they do not have their OG meta-data defined and not pointing to a different logo to allow for optimal social media posting. If their tweeting does not work, I will have them investigate, edit and send you the files.
FYI:
https://gist.github.com/fjaguero/3904423
https://blog.kissmetrics.com/open-graph-meta-tags/
https://moz.com/blog/meta-data-templates-123
For example, the library has an image:
gc-cuny-og-logo.jpg
at:
http://library.gc.cuny.edu/images/new/gc-cuny-og-logo.jpg";
allowing for optimal posting.
If neededm I will have them edit this:
function insert_fb_in_head() {
global $post;
if ( !is_singular()) //if it is not a post or a page
return;
echo '<meta property="fb:admins" content="17402839"/>';
echo '<meta property="og:title" content="' . get_the_title() . '"/>';
echo '<meta property="og:type" content="article"/>';
echo '<meta property="og:url" content="' . get_permalink() . '"/>';
echo '<meta property="og:site_name" content="The Graduate Center Library"/>';
echo '<meta property="og:description" content="The Graduate Center Library supports the research, teaching, and learning activities of the Graduate Center by connecting its community with print materials, electronic resources, research assistance and instruction, and expertise about the complexities of scholarly communication. It also serves as a gateway to the collections of other CUNY libraries, the New York Public Library (NYPL), and libraries worldwide."/>';
if(!has_post_thumbnail( $post->ID )) { //the post does not have featured image, use a default image
$default_image="http://library.gc.cuny.edu/images/new/gc-cuny-og-logo.jpg"; //replace this with a default image on your server or an image in your media library
echo '<meta property="og:image" content="' . $default_image . '"/>';
}
else{
$thumbnail_src = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'medium' );
echo '<meta property="og:image" content="' . esc_attr( $thumbnail_src0 ) . '"/>';
}
echo "
";
}