Free Open Graph Tag Checker
Enter a URL to check if it has the essential Open Graph tags (og:title, og:description) for proper social media previews.
What this Open Graph checker checks
This free Open Graph tag checker fetches your page and verifies that the essential OG tags are present: og:title and og:description at minimum, the tags social platforms read to build the preview card when your link is shared on LinkedIn, Facebook, Slack, X, and iMessage. Missing tags mean platforms fall back to a bare URL or scrape whatever text and image they can find.
For a full walkthrough of every tag, image sizing, and how to debug a broken preview, read the Open Graph tags complete guide.
Why Open Graph tags matter
A link with proper Open Graph tags renders as a rich card with your chosen title, description, and image. That card is far more clickable than a naked URL, so OG tags directly affect how much traffic your shared links earn on social and in group chats.
They are also read server-side only: platforms never run your JavaScript, so the tags must be in the HTML your server returns. A page that sets OG tags client-side will still show a broken preview.
How to fix missing Open Graph tags
Add the four core tags to the head of every shareable page:
- og:title: the specific page title, ideally under 60 characters.
- og:description: a one or two sentence summary, around 100 to 150 characters.
- og:image: an absolute URL to a 1200 by 630 pixel image, served without a redirect.
- og:url: the canonical URL of the page.
Honest limits
This tool checks for the presence of the core tags on the single page you enter; it does not download and validate that your og:image meets each platform's exact dimension and file-size rules. After changing tags, use the Facebook Sharing Debugger or LinkedIn Post Inspector to force a cache refresh. A full free audit checks Open Graph across your whole site alongside structured data and returns a PDF report.
Frequently asked questions
Is this Open Graph checker free?
Yes, free with no signup, up to 15 checks per hour.
Which Open Graph tags are required?
At minimum og:title and og:description. Add og:image and og:url for a complete, well-rendered preview card.
What size should the og:image be?
Use 1200 by 630 pixels. Below 600 by 315 some platforms show a small thumbnail instead of a full-width card.
Why does my preview still look wrong after fixing tags?
Platforms cache aggressively. Run the Facebook Sharing Debugger or LinkedIn Post Inspector to force a fresh scrape.
Does it check Twitter/X card tags too?
This tool focuses on the core Open Graph tags. X reads OG tags as a fallback, so getting those right covers most cases. See the complete guide for twitter: tags.