Free Online Open Graph Tag Checker
When someone shares your webpage on Facebook, LinkedIn, Twitter, or Slack, the card preview that appears is controlled by Open Graph (OG) meta tags. If those tags are missing, incorrect, or poorly configured, your shared links might show the wrong title, a broken image, or no description at all. Our free Open Graph checker lets you paste your HTML and instantly see exactly what OG tags are present — and which ones might be missing.
Think of this tool as a preflight check for your social media sharing experience. Catch problems before your audience does.
How to Use the Open Graph Checker
Paste your page's HTML source code into the input area. The tool parses the HTML and extracts all Open Graph meta tags, displaying the detected property names and values in a clear, readable format. You will instantly see if critical tags like og:title, og:description, og:image, and og:url are present and properly configured.
Why Open Graph Tags Matter
Content shared on social media with proper OG tags gets significantly more engagement. A compelling image and description in the link preview can increase click-through rates by 2–3x compared to a bare URL with no preview card.
- Content marketers ensure every piece of content looks professional when shared socially.
- Social media managers troubleshoot why shared links display incorrectly.
- Web developers validate OG implementation before deploying to production.
- SEO teams audit OG tags as part of comprehensive on-page optimization.
Key Features
- Extracts all OG tags from pasted HTML
- Displays property names and values clearly
- Identifies missing critical tags
- 100% browser-based — your HTML stays private
- Free with no account required
Essential Open Graph Tags
At minimum, every page should have og:title, og:description, og:image, and og:url. Use images sized 1200x630 pixels for optimal display across platforms. Keep your OG title under 60 characters and description under 155 characters. Set og:type to "website" for homepages and "article" for blog posts.
Frequently Asked Questions
What is the Open Graph protocol?
Open Graph is a protocol created by Facebook that lets web pages become rich objects in a social graph. It uses meta tags in your HTML to define how your content appears when shared on social media platforms.
Why does my shared link show the wrong image?
This usually means your og:image tag is missing, points to a broken URL, or the image is too small. Social platforms cache previews, so after fixing the tag, you may need to use Facebook's Sharing Debugger or LinkedIn's Post Inspector to clear the cache.
Do Open Graph tags affect SEO rankings?
OG tags do not directly impact search engine rankings. However, well-configured OG tags increase social media engagement, which drives traffic and can indirectly lead to more backlinks — both of which help SEO over time.