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H01 · Information items

Share preview tags

Open Graph and Twitter Card declarations

Why it is checked

Checks whether the homepage declares a share preview (Open Graph title, description and image, and a Twitter Card) — what link previews in chat apps, social feeds and some AI answer cards are built from.

How it counts

Never scored. Information items are read from the homepage we already fetched and do not affect your base score.

How results read

The wording below is exactly what a report shows for each result.

  • Passed

    In this check, the homepage HTML contained a complete, well-formed declaration for this item. We read the declaration only and did not fetch what it points to. Information item: it does not affect your base score.

  • Declared · incomplete

    In this check, the homepage HTML declared this item, but the declaration was incomplete or malformed. See the suggested steps. Information item: it does not affect your base score.

  • Not found · optional

    In this check, the homepage HTML did not declare this item. Whether to add it depends on your site's purpose. Information item: it does not affect your base score.

  • Couldn't verify

    We could not read the homepage reliably in this check, so nothing is concluded about this item either way.

How to fix it

Fix steps depend on what the check actually finds on your site, so they appear in your report next to this item, together with the evidence. Rule templates only — no AI model writes them.