What it shows
Open Graph tags
Open Graph tags (og:) are used by Facebook, LinkedIn, Discord, Slack, and most platforms:
Twitter Card tags
Twitter Card tags (twitter:) control how links appear on X (Twitter):
What to look for
- Missing tags — pages without Open Graph tags get unpredictable previews when shared
- Missing images — links without
og:imagedisplay text-only previews, which get far less engagement - Truncated text — titles over ~60 characters and descriptions over ~155 characters may be cut off
- Wrong image dimensions — Facebook recommends 1200x630px for
og:image; Twitter summary_large_image works best at 2:1 ratio
Next steps
On-page
Review core on-page SEO elements.
Images
Audit image optimization and alt text.