--- title: "twitter:card missing (seo/twitter-card)" description: "seo/twitter-card: X shows a small summary card without it; title, description and image can fall back to Open Graph, but the card type can't." canonical: https://void-design.vercel.app/rules/seo/twitter-card lastModified: 2026-09-16 --- # twitter:card missing `seo/twitter-card` · severity **warn** · category SEO · detected by `void seo` and `void audit` ## Why it matters X shows a small summary card without it; title, description and image can fall back to Open Graph, but the card type can't. ## How to fix it Set twitter: { card: 'summary_large_image' } in the root layout metadata. ## References - https://developer.x.com/en/docs/x-for-websites/cards/overview/summary-card-with-large-image ## More seo rules `void seo` reports 60 rules in this category. What search engines need from the raw response: status codes, titles and descriptions in , self-referencing canonicals, one h1, crawlable links, Open Graph, icons, robots.txt and a sitemap with real dates. - `og-incomplete` og:description / og:site_name missing, or og:url ≠ canonical — [seo/og-incomplete](https://void-design.vercel.app/rules/seo/og-incomplete) - `og-image-invalid` og:image isn't a reachable, absolute, raster image within size limits — [seo/og-image-invalid](https://void-design.vercel.app/rules/seo/og-image-invalid) - `og-image-size` og:image is smaller than 1200×630 or far from 1.91:1 — [seo/og-image-size](https://void-design.vercel.app/rules/seo/og-image-size) - `og-image-meta` og:image:width/height missing or wrong, or og:image:alt missing — [seo/og-image-meta](https://void-design.vercel.app/rules/seo/og-image-meta) - `favicon` No crawlable favicon in a Google-supported format — [seo/favicon](https://void-design.vercel.app/rules/seo/favicon) - `apple-touch-icon` apple-touch-icon missing or not a 180×180 PNG — [seo/apple-touch-icon](https://void-design.vercel.app/rules/seo/apple-touch-icon) - `manifest` Web app manifest missing or incomplete — [seo/manifest](https://void-design.vercel.app/rules/seo/manifest) - `theme-color` No theme-color meta — [seo/theme-color](https://void-design.vercel.app/rules/seo/theme-color) Detected by `void seo` and `void audit`. Explain it in a terminal: `void rules seo/twitter-card`