SEO On-Page: Twitter Cards#

Guides implementation of Twitter Card meta tags for X (Twitter) link previews. Twitter falls back to Open Graph if Twitter-specific tags are missing; add both for best results.

When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Scope (Social Sharing)#

• Twitter Cards: X-specific meta tags; control how links appear when shared on X/Twitter

Card Types#

TypeUse casesummarySmall card with thumbnailsummary_large_imageLarge prominent image (recommended; 1200×675px)appMobile app promotionplayerVideo/audio content

Recommended Tags (summary_large_image)#

html

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Title">
<meta name="twitter:description" content="Your description">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:site" content="@yourusername">
<meta name="twitter:creator" content="@authorusername">
<meta name="twitter:image:alt" content="Alt text for image">

TagGuidelinetwitter:cardRequired; summary_large_image for most pagestwitter:titleMax 70 chars; concise titletwitter:descriptionMax 200 chars; summarytwitter:imageAbsolute URL; unique per pagetwitter:site@username of websitetwitter:creator@username of content creatortwitter:image:altAlt text; max 420 chars; accessibility

Image Requirements#

ItemGuidelineAspect ratio2:1Minimum300×157 pxRecommended1200×675 pxMax4096×4096 pxFile sizeUnder 5MBFormatsJPG, PNG, WebP, GIF (first frame only); SVG not supported

Common Mistakes#

• Missing Twitter Card tags (Twitter won't display images properly without them)
• Using relative image URLs instead of absolute https://
• Images too small or wrong aspect ratio
• Title/description too long (gets truncated)

Implementation#

Next.js (App Router)#

tsx

export const metadata = {
  twitter: {
    card: 'summary_large_image',
    title: '...',
    description: '...',
    images: ['https://example.com/twitter.jpg'],
    site: '@yourusername',
    creator: '@authorusername',
  },
};

HTML (generic)#

html

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Title">
<meta name="twitter:description" content="Your description">
<meta name="twitter:image" content="https://example.com/image.jpg">
<meta name="twitter:site" content="@yourusername">
<meta name="twitter:image:alt" content="Alt text">

Testing#

• X (Twitter): Card Validator

Related Skills#

• social-share-generator: Share buttons use Twitter Cards for X previews when users share; Cards must be set for share buttons to show proper previews
• open-graph: OG tags; Twitter falls back to OG if Twitter tags missing
• title-tag: Title tag often mirrors twitter:title
• meta-description: Meta description often mirrors twitter:description
• page-metadata: Hreflang, other meta tags
• twitter-x-posts: X post copy and engagement (different from link previews)