What is Open Graph
When you share a link on Facebook, Telegram, Viber or LinkedIn, the service loads the page and looks for Open Graph tags: og:title, og:description, og:image. They make up a card with a title, description and image. Without these tags the preview will be empty or random.
Minimal set of tags
<meta property="og:title" content="Page title"> <meta property="og:description" content="Short description"> <meta property="og:image" content="https://example.com/cover.jpg"> <meta property="og:url" content="https://example.com/page"> <meta property="og:type" content="website"> <meta name="twitter:card" content="summary_large_image">
Tips
- Image — 1200 × 630 pixels, JPG or PNG up to 5 MB, served over HTTPS.
- Title up to 60–70 characters, description up to 160.
- In WordPress the tags are added by SEO plugins such as Yoast or Rank Math — easy to install on WordPress hosting.