Open Graph Checker: Test Your OG Tags (Free 2026 Tool)
Free Open Graph checker. Verify your og:title, og:description, og:image, and og:url tags are correct. Learn common OG tag mistakes that kill social shares and how to fix them.
What Open Graph tags do
Open Graph (OG) tags control how your page appears when shared on Facebook, LinkedIn, Slack, Discord, and most messaging apps. Without them, platforms guess — and often show the wrong title, description, or image.
The four required OG tags are og:title, og:description, og:image, and og:url. Missing any of these means your link preview is either broken or showing placeholder content.
- og:title — the headline shown in the preview
- og:description — the summary text below the title
- og:image — the preview image (1200×630px recommended)
- og:url — the canonical URL of the page
- og:type — article, website, product, etc.
Common OG tag mistakes
The most common mistake is having og:title and og:description but no og:image — the link shows up as plain text with no visual preview, which dramatically reduces click-through rates.
Another frequent issue is og:image pointing to a relative URL (e.g., /images/hero.jpg) instead of an absolute URL (https://example.com/images/hero.jpg). Crawlers need the full URL.
How to check your OG tags
Paste your URL into our meta tag checker and it will detect all Open Graph tags, show you the social preview as it would appear on Facebook, and flag any missing or malformed tags.
The tool also checks Twitter Card tags separately, so you can see if your page is optimized for both platforms.
Frequently Asked Questions
The recommended size for og:image is 1200×630 pixels. This ensures the image displays correctly in link previews on Facebook, LinkedIn, and most other platforms.
Twitter falls back to Open Graph tags if Twitter Card tags are missing, but having both ensures optimal previews on every platform. Use twitter:card = summary_large_image for link previews with images.