How dc.com Looks on Facebook
dc.com has the basics in place, with a handful of fixes that would tighten things up. Open Graph, Twitter Card, and a favicon are all wired up. The previews below show exactly how a link to dc.com looks on Facebook.
Facebook preview
Large card (image ≥ 600px wide)

www.dc.com
DC.com - The Official Home of DC
DC.com - Welcome to the Official Site for DC. DC is home to the world's Greatest Super Heroes, including SUPERMAN, BATMAN, WONDER ...
Compact card (image < 600px wide)

www.dc.com
DC.com - The Official Home of DC
DC.com - Welcome to the Official Site for DC. DC is home to the world's Greatest...
Analysis
The biggest fix on Facebook: Image won't fit social cards (1200×900, 1.33:1). Beyond that, there is one more issue flagged below.
What's working: social share image found, plus 2 other checks passing.
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