OCMA Tools

Social Preview Checker

Check how your page looks when shared on Twitter/X, Facebook, LinkedIn, Slack, and WhatsApp. Preview Open Graph and Twitter Card tags before publishing.

Free

How to use

  1. 1 Paste the full URL of the page you want to check, including the protocol (https://).
  2. 2 The tool fetches the page's meta tags and displays them organised by category: SEO, Open Graph, and Twitter Card.
  3. 3 Review how the link card renders on different platforms. Check for missing images, truncated text, or incorrect dimensions.
  4. 4 If something is wrong, update your page's meta tags and re-check until the preview looks perfect.

Key features

  • Scans all SEO, Open Graph, and Twitter Card meta tags from any public URL
  • Validates og:image dimensions and detects missing or oversized titles and descriptions
  • Detects common issues: missing OG tags, titles too long, inadequate image resolution, missing Twitter Card tags
  • Copy any meta tag as full <meta> HTML with one click for easy paste into your page's head section

What Is a Social Preview Checker?

A social preview checker (also called an Open Graph tester or social share preview tool) lets you see exactly how your page will look when shared on Twitter/X, Facebook, LinkedIn, Slack, or WhatsApp before you hit publish.

When you share a link on social media, the platform scrapes the page's meta tags, particularly Open Graph (og:title, og:description, og:image) and Twitter Card tags. If these are missing, wrong, or too long, the preview looks broken.

Why Preview Matters

First impression on social

The link preview is often the first thing people see. A broken image or truncated title hurts click-through rates.

SEO correlation

Pages with correct OG tags tend to rank better. Social signals and click-through behaviour indirectly influence search rankings.

Catch issues before going live

A missing og:image, a title over 60 characters, or a description with broken HTML, all visible before you share.

Platform-specific rendering

Each platform handles cards differently. Twitter trims at 70 chars for title, Facebook at 40 for description. Preview both.

Common Issues This Tool Catches

  • Missing og:image: the most common problem. Without it, the link card has no image.
  • Title too long: Twitter cuts at ~70 chars, Facebook at ~40. Keep it short.
  • Wrong image dimensions: Twitter needs 1200×675, Facebook 1200×630. A small image gets stretched or ignored.
  • Missing Twitter Card tags: twitter:card must be present for Twitter to show a rich preview.
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