Open Graph tags are present

When a URL is pasted into Slack, Discord, LinkedIn, X, or iMessage, the preview card is generated entirely from Open Graph tags. Without og:title and og:description, shared links render as a naked URL with no thumbnail — dramatically lowering click-through on the most common viral distribution channel. This is findability via social graph rather than search, and it costs nothing to fix but directly gates every shared-link impression.

Add the four core Open Graph tags to the document head with absolute URLs for og:image and og:url. In Next.js App Router, use the metadata API so the framework emits the tags correctly:

// app/layout.tsx
export const metadata = {
  openGraph: {
    title: 'Page Title',
    description: 'Share-surface summary.',
    url: 'https://yoursite.com/',
    images: ['https://yoursite.com/og-image.png'],
  },
};

Validate with the LinkedIn Post Inspector and opengraph.xyz.