Social Preview Validator

A social preview validator checks the metadata that platforms use when someone shares a URL. Instead of only listing raw tags, it answers the practical question teams actually care about: what will the link preview probably look like in Slack, LinkedIn, X, Discord, or a chat app, and is anything obviously wrong before the page goes live?

That matters because social previews are often assembled from several fallback layers. A page might have no twitter:title tag, so X falls back to og:title . Another page might have an Open Graph title but no description, so the network guesses from body copy. Those previews can work, but they are fragile and hard to QA by just reading HTML.

This free social preview validator loads the live page metadata, renders likely Open Graph and Twitter-style cards, and flags the common gaps that make previews look inconsistent. It is especially useful before campaigns, launches, and CMS migrations where one broken share card gets copied into many channels quickly.

Start with the rendered cards, not the raw tags. If the preview title looks vague, truncated, or mismatched with the image, that is the fastest signal that the share setup needs work. The source labels under each card show whether the preview is using a dedicated social tag or quietly falling back to the page-level metadata.

Next, review the validation checks. The highest-value issues are usually missing twitter:card values, absent descriptions, and share images that do not resolve cleanly. Those problems tend to create previews that are inconsistent across platforms, even when one network appears to render them correctly.

Example: a product launch page might look fine in LinkedIn because it uses og:title and og:image , but its X preview could still feel incomplete because twitter:card and twitter:description were never added. This validator makes that mismatch obvious before the URL gets shared publicly.