LinkedIn link previews: which OG tags LinkedIn reads and which it ignores
LinkedIn is the most straightforward platform for OG tags. Use a 1200x627 image, keep titles under 200 characters, and test with the Post Inspector. No need for platform-specific tags beyond the standard og: set.
LinkedIn uses og:title, og:description, and og:image for link previews in posts, articles, and messages. It ignores twitter: tags entirely. The image must be at least 200x200 pixels, but LinkedIn recommends 1200x627 (a slightly different aspect ratio from the standard 1200x630). Images over 5 MB are ignored.
By TechCompare · Updated
How this is calculated
LinkedIn's Post Inspector (the debugger at linkedin.com/post-inspector) lets you preview and refresh your OG tags. Unlike Facebook's Sharing Debugger, LinkedIn's cache is relatively short (roughly 7 days), and the Post Inspector forces an immediate refresh. LinkedIn also has a maximum title length of roughly 200 characters and a description limit of roughly 300 characters before truncation. If og:image is missing, LinkedIn shows a grey placeholder. For company pages and articles published directly on LinkedIn, OG tags don't apply because LinkedIn generates the preview from the article's own metadata.
Verdict
LinkedIn ignores twitter: tags entirely and reads only og:title, og:description, and og:image, so the standard set is enough. Images under 200x200 or over 5 MB get dropped to a grey placeholder, and titles over roughly 200 characters truncate with a roughly 300-character description ceiling. The Post Inspector at linkedin.com/post-inspector refreshes LinkedIn's roughly 7-day cache immediately.