Social Share Preview Checker

When someone shares your URL, you get one chance to make a first impression. A broken preview — missing image, truncated title, or generic description — significantly reduces the likelihood of clicks. Social platforms cache previews aggressively, so if your tags were wrong when the link was first shared, the broken version persists even after you fix the HTML. Preview your pages before they go live and use platform-specific debuggers (Facebook Sharing Debugger, Twitter Card Validator) to force a re-scrape after making changes.

Facebook recommends images at 1200x630 pixels with a 1.91:1 aspect ratio. Twitter supports both summary cards (small square thumbnail) and summary_large_image cards (wide rectangular image). LinkedIn uses the same dimensions as Facebook. If your image is too small, some platforms will fall back to a tiny thumbnail or no image at all. Always specify og:image with an absolute URL (starting with https://) — relative paths do not work for social crawlers since they are fetching from outside your domain.