caniuse.com Social Share Preview
caniuse.com has been validated across all 6 major social platforms. The current preview headline reads "Can I use... Support tables for HTML5, CSS3, etc". Neither a description nor an image is configured, which produces a sparse preview. Overall, caniuse.com's setup scores 39/100 against cross-platform best practices.
Previews across all platforms
Twitter / X
summary_large_image
caniuse.com
Can I use... Support tables for HTML5, CSS3, etc
summary (active)
caniuse.com
Can I use... Support tables for HTML5, CSS3, etc
Large card (image ≥ 600px wide)
caniuse.com
Can I use... Support tables for HTML5, CSS3, etc
Compact card (image < 600px wide)
caniuse.com
Can I use... Support tables for HTML5, CSS3, etc
Google Search
Search result
caniuse.com
caniuse.com
Can I use... Support tables for HTML5, CSS3, etc
Can I use... Support tables for HTML5, CSS3, etc
caniuse.com
Slack
caniuse.com
Can I use... Support tables for HTML5, CSS3, etcDiscord
caniuse.com
Can I use... Support tables for HTML5, CSS3, etcAnalysis
caniuse.com's social setup currently has 1 error and 4 warnings that affect how it renders across social platforms. The most impactful fixes are listed below - they range from missing required tags to image dimensions that will be cropped or rejected by specific platforms.
In particular: no social share image found; no og:title - falling back to <title> tag; no description found. Each of these has a one-line fix in the recommendations panel above.
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