Open Graph Checker — Preview and Generate OG Tags for Any URL

What are Open Graph Tags?

Open Graph tags are hidden meta tags placed inside the <head> of a webpage. They control how a page appears when shared on social media platforms — including the title, image, and description shown in a link preview on Facebook, Twitter/X, LinkedIn, WhatsApp, and Telegram.

Open Graph was created by Facebook in 2010 and has since become the standard for social sharing metadata across the web. Without proper OG tags, social platforms either display incorrect information or show no preview at all — which significantly reduces click-through rates on shared links.

The four essential Open Graph tags every page needs are:

  • og:title — the headline shown in the preview card
  • og:description — the summary text below the title
  • og:image — the thumbnail image displayed (recommended size: 1200×630px)
  • og:url — the canonical URL of the page

Freekito's Open Graph Checker fetches any public URL and instantly shows you which OG tags are present, which are missing, and how the page will appear when shared across major social platforms.

How to Use the Open Graph Checker

Checker mode — inspect any URL:

  1. Paste any public URL into the input field above.
  2. Click "Check OG Tags."
  3. View the extracted Open Graph tags and see a live preview of how the page appears on Facebook, Twitter/X, and LinkedIn.
  4. If any tags are missing, Freekito will highlight them in red with a recommended fix.

Generator mode — create OG tags for your own site:

  1. Switch to "Generate" mode using the toggle.
  2. Fill in your page title, description, image URL, and site name.
  3. Click "Generate Tags."
  4. Copy the ready-to-paste HTML code and add it to the <head> of your page.

Frequently Asked Questions

Why are my Open Graph tags not showing on Facebook?
Facebook caches OG tag data when a URL is first shared. If you have updated your tags, use the Facebook Sharing Debugger tool to clear the cache and force Facebook to re-fetch your page's metadata. Changes can take a few minutes to appear.
What is the recommended Open Graph image size?
The recommended og:image size is 1200×630 pixels with a minimum of 600×315 pixels. Images smaller than 200×200 pixels will not display as a large preview card on most platforms. Use JPG or PNG format and keep file size under 8MB.
What happens if a page has no Open Graph tags?
If no OG tags are present, social platforms attempt to guess the title and description from the page's regular title tag and body content. The result is usually incorrect or unstyled and there will be no preview image. Adding proper OG tags can significantly increase link click-through rates.
What is the difference between og:title and the HTML title tag?
The HTML title tag controls the text shown in browser tabs and Google search results. The og:title tag controls the text shown in social media link previews. They can be different — and often should be, since social titles are not subject to the same character limits as SEO titles.
Does the Open Graph Checker work on password-protected pages?
No. The checker fetches pages as a public visitor with no login credentials. Any page behind authentication, a login wall, or a paywall will return an error or an empty result.
What is og:type and what value should I use?
og:type tells social platforms what kind of content the page contains. Use website for most pages, article for blog posts and news, and product for e-commerce pages. Using the correct type can unlock richer link previews on some platforms.
Is the Open Graph Checker free?
Yes. Freekito's Open Graph Checker is completely free to use with no account required. Free users can check up to 10 URLs per day. For unlimited checks, points can be purchased from your account dashboard.
What is og:image:alt and why does it matter?
og:image:alt provides alternative text for the OG preview image. It improves accessibility for users who rely on screen readers and is required for full compliance with accessibility guidelines on Facebook and LinkedIn.