What is an Open Graph checker?

An Open Graph checker is a tool that fetches a webpage's HTML and extracts its Open Graph meta tags — such as og:title, og:description, and og:image — so you can preview exactly how the page will appear when shared on social media platforms like Facebook, LinkedIn, and Twitter.

What are Open Graph meta tags?

Open Graph (OG) meta tags are snippets of HTML placed in a webpage's head section that control how the page is displayed when shared on social media. The most important tags are og:title (the headline), og:description (the summary), og:image (the thumbnail), og:url (the canonical link), and og:type (content type such as website or article).

Why is my social media preview showing wrong information?

Social media platforms cache previews for a period of time. If you recently updated your OG tags, the old preview may still be cached. You can use Facebook's Sharing Debugger or LinkedIn's Post Inspector to force a cache refresh. This tool will always show the current live OG tags on your page.

What is the recommended og:image size?

The recommended og:image size is 1200 x 630 pixels for most platforms. Facebook and LinkedIn render best at this resolution. Twitter (X) cards work well with a minimum of 800 x 418 pixels. Images smaller than 600px wide may not display as a large preview.

Do Open Graph tags affect SEO?

Open Graph tags do not directly affect search engine rankings. However, they significantly impact click-through rates on social media by controlling the visual appearance of shared links. Better previews lead to more clicks, more traffic, and indirectly improved SEO through increased engagement signals.

Open Graph Checker

Preview exactly how your web page appears when shared on Facebook, LinkedIn, X (Twitter), and WhatsApp — free, instant, no login needed.

What Are Open Graph Tags?

Open Graph (OG) meta tags are snippets of HTML placed in the <head> of a webpage that control how that page appears when shared on social media platforms like Facebook, LinkedIn, X (Twitter), and WhatsApp. Without them, social platforms make a best guess at what to show — often with poor results.

The Open Graph protocol was originally created by Facebook and is now the de-facto standard for social sharing previews across the web. Adding correct OG tags to your pages can significantly increase click-through rates when your content is shared.

How Does This Open Graph Checker Work?

Enter any URL and click Check OG Tags. The tool fetches the page's live HTML, parses the <head> section, and extracts all Open Graph <meta> tags — displaying them in a clear table alongside a preview of the OG image.

This is useful for:

Verifying your OG tags are correctly implemented before publishing
Diagnosing why a social media preview is showing wrong text or image
Auditing competitor pages to see their sharing strategy
Confirming Twitter Card and LinkedIn preview data is present
Checking pages after a migration or CMS change

Open Graph Tag Reference

Tag	Description	Best Practice
`og:title`	The title shown in the social media preview card.	Keep under 60 characters. Make it compelling and relevant.
`og:description`	A short description of the page content shown below the title.	Keep under 160 characters. Summarise the value clearly.
`og:image`	The thumbnail image displayed in the preview card.	Use 1200 × 630px. Must be an absolute URL (https://).
`og:url`	The canonical URL of the page being shared.	Should match your canonical link tag exactly.
`og:type`	The content type of the page.	Use `website` for homepages, `article` for blog posts.
`og:site_name`	The name of your website or brand.	Use your brand name consistently across all pages.
`twitter:card`	Controls how Twitter (X) displays the shared link.	Use `summary_large_image` for a large image preview.

Why Do Open Graph Tags Matter?

Higher click-through rates — A compelling preview with a strong image and clear title dramatically increases the chance someone clicks your shared link.
Brand consistency — OG tags ensure your brand image and messaging appear correctly across all social platforms, not whatever the platform auto-generates.
Indirect SEO benefit — More social shares drive more traffic and backlinks, which are positive signals for search engine rankings.
WhatsApp & messaging previews — OG tags also control link previews in messaging apps, expanding your reach beyond traditional social networks.
Professionalism — Pages without OG tags look incomplete and untrustworthy when shared, reducing credibility.

Frequently Asked Questions

Why is my social media preview showing old content?

Social platforms cache previews. After updating your OG tags, use Facebook's Sharing Debugger or LinkedIn's Post Inspector to force a cache refresh. This tool always reads your page's current live tags.

What is the best og:image size?

Use 1200 × 630 pixels for the best results across Facebook, LinkedIn, and WhatsApp. For Twitter (X) large cards, a minimum of 800 × 418px is recommended. Always use an absolute HTTPS URL for the image.

Do Open Graph tags affect Google SEO?

OG tags are not a direct Google ranking factor. However, better social previews lead to more clicks and shares, which increases traffic and backlinks — both of which indirectly benefit your search rankings.

What happens if I don't have OG tags?

Without OG tags, social media platforms will try to auto-generate a preview using the page title, first paragraph of text, and a randomly selected image. This often results in inconsistent, unattractive previews that reduce engagement.

Is this Open Graph checker free to use?

Yes, completely free. Enter any URL and instantly see all its Open Graph meta tags and preview image. No account or sign-up is required.