twitter:card is missing

One tag X will not infer

X reads Open Graph tags as a fallback, so og:title, og:description and og:image all carry over without a Twitter-specific equivalent. twitter:card is the exception. It declares which card layout to use, and X will not guess it.

This is why a page with otherwise complete metadata can preview perfectly everywhere else and fall flat on X. The content is all there; nothing has told X how to lay it out.

Which value to use

summary_large_image is the right answer for almost every page. It renders your og:image at full card width, which is the layout you want for an article, a landing page, a product, or anything else being shared to be read.

summary is the small-thumbnail layout — a square image beside the text. It is occasionally right for a directory entry or a profile where the image is incidental, but it is a much weaker card and rarely the deliberate choice.

The player and app card types exist for embedded media and app install prompts, and both require additional tags and X-side approval.

You probably do not need the rest

twitter:title, twitter:description and twitter:image all fall back cleanly to their Open Graph equivalents. Set them only when you want different copy on X. Adding duplicates of tags you already have is just more markup to keep in sync.

The one tag that matters

<meta name="twitter:card" content="summary_large_image" />

<!-- Optional: only if X should differ from Open Graph -->
<meta name="twitter:site" content="@yourhandle" />

Frequently asked