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Free Open Graph Checker & OG Image Tester

Check OG tags on any page and see exactly how it appears when shared on Facebook, LinkedIn, Twitter/X, WhatsApp, and Slack. Validate your og:image, og:title, og:description, and all Open Graph meta tags with a scored report and exact fixes.

πŸ“˜ Facebook Card 𝕏 Twitter/X Card πŸ’Ό LinkedIn Preview πŸ’¬ WhatsApp Preview 🟣 Slack Unfurl πŸ” Google SERP βœ… 13 Tag Checks

Try any public URL β€” homepage, blog post, product page, or a competitor's site. We fetch it with Facebook's crawler user-agent.

The Basics

What Are Open Graph Tags and Why Do They Matter?

Open Graph (OG) tags are HTML meta tags that control how your web pages appear when shared on social media β€” Facebook, LinkedIn, Twitter, WhatsApp, Slack, and more. Created by Facebook in 2010, they're now the universal standard for social sharing metadata.

Without OG tags, social platforms guess what to show β€” often displaying a random image or paragraph of text. With properly configured Open Graph meta tags, every link share shows exactly the image, title, and description you intended β€” turning a plain link into a professional, click-worthy card.

Our free open graph checker online fetches your page using Facebook's exact crawler user-agent (facebookexternalhit/1.1), so you see precisely what social platforms see.

inside your tag 

"og:title" content="Your Page Title">
"og:description" content="100–200 char description">
"og:image" content="https://site.com/og.jpg">
"og:url" content="https://site.com/page/">
"og:type" content="website">


"twitter:card" content="summary_large_image">
OG Image Checker Guide

How to Check Your OG Image β€” Platform Size Requirements

Every platform has different requirements for og:image size. Our opengraph checker validates your image against each one.

πŸ“˜

Facebook

1200 Γ— 630 px

Minimum 600Γ—314px. Smaller images show as tiny thumbnails. Max 8MB. JPG or PNG. Use HTTPS URLs.

πŸ’Ό

LinkedIn

1200 Γ— 627 px

LinkedIn strictly follows og:image and caches for 7 days. Use the Post Inspector to force a refresh after changes.

𝕏

Twitter / X

1200 Γ— 628 px (large)

Set twitter:card="summary_large_image" for full-width. Without it, Twitter uses a 144Γ—144px thumbnail circle.

πŸ’¬

WhatsApp

Min 300 Γ— 200 px

WhatsApp shows a small thumbnail β€” ensure your image works well when cropped to a square at small sizes.

🟣

Slack

800 Γ— 418 px recommended

Slack uses og:title, og:description, and og:image for rich unfurls. It also falls back to twitter:image.

πŸ”

Google Discover

1200 Γ— 675 px

Google Discover uses og:image for article cards. Images must be β‰₯1200px wide to qualify for large card display.

Full OG Meta Tag Reference

Open Graph Tags Checker β€” Complete Tag Reference

When you use our tool to check OG tags, we validate all of these properties. Here's what each one does.

og:title
Required

Title shown in social cards. Keep under 95 chars to avoid truncation on Facebook.

og:description
Required

100–200 char description below the title. Drives click-through rate on social.

og:image
Required

The preview image. 1200Γ—630px for best results on all platforms.

og:url
Recommended

Canonical URL. Prevents Facebook from splitting like-counts across URL variations.

og:type
Recommended

"website", "article", "product", "video.movie" etc.

og:site_name
Recommended

Your brand name β€” shown as the source label in cards.

og:image:width/height
Optional

Declare dimensions to prevent layout shifts while the image loads.

og:locale
Optional

Language code e.g. en_US, fr_FR. Defaults to en_US.

og:image:alt
Optional

Alt text for your OG image β€” improves accessibility on social platforms.

twitter:card
Required for X

Use "summary_large_image" for full-width preview on Twitter/X.

How to Add Open Graph Tags in WordPress

The fastest way to add and check OG meta tags on a WordPress site is through an SEO plugin. After setting them up, use our og meta tag checker to verify they're working.

Yoast SEO (Free)

Post/page editor β†’ Yoast β†’ Social tab. Set a custom og:title, og:description, and upload an og:image per page. Yoast also adds site-wide OG defaults.

SEO β†’ Social β†’ Facebook tab

Rank Math (Free)

Rank Math adds a Social Preview panel to every post editor. Set Facebook and Twitter images independently. The Pro version supports bulk OG image assignment.

Post editor β†’ Rank Math β†’ Social
πŸ’‘

Always validate after changes

After adding OG tags, use our free open graph checker online to confirm they're being output. Then use Facebook's Sharing Debugger (developers.facebook.com/tools/debug/) to force a re-scrape of the cached data.

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Frequently Asked Questions

What does an Open Graph checker do?
An Open Graph checker (also called an OG tags checker or og meta checker) fetches any webpage and reads all of its Open Graph meta tags β€” og:title, og:description, og:image, og:url, og:type, and more. It then shows live previews of how the page will appear when shared on Facebook, Twitter/X, LinkedIn, WhatsApp, and Slack β€” along with a validation report flagging missing or misconfigured tags and exact fix instructions.
Why is my og:image not showing when I share on Facebook?
The most common reasons are: (1) The og:image URL is not absolute β€” it must start with https://. (2) Facebook cannot reach the image due to a firewall or authentication. (3) The image is smaller than 200Γ—200px. (4) Facebook has cached the old version. Use our open graph checker online to diagnose the issue, then use Facebook's Sharing Debugger at developers.facebook.com/tools/debug/ to force a fresh scrape.
What is the recommended og:image size?
The universally recommended og:image size is 1200Γ—630 pixels (a 1.91:1 aspect ratio). This displays perfectly on Facebook, LinkedIn, and Twitter with summary_large_image. At minimum, use 600Γ—315px β€” anything smaller may not generate a preview card. Always serve your OG image over HTTPS and keep the file size under 8MB.
Do Open Graph tags affect my Google rankings?
Open Graph tags do not directly affect Google search rankings β€” Google uses your regular title tag and meta description, not og:title or og:description. However, well-configured OG tags indirectly boost SEO by increasing click-through rates on social shares, which drives more traffic, backlinks, and positive engagement signals that Google factors into rankings over time.
How is the OG health score calculated?
Each of the 13 tag checks is scored by severity. Errors (missing required tags) score 0 points, Warnings score 1 point, Notices score 1.5 points, and Passed checks score 2 points. The total is divided by the maximum possible score and displayed as a percentage. A score of 80+ indicates a well-configured OG setup. A score below 60 means critical tags are missing.
Why does LinkedIn still show old OG data after I updated my tags?
LinkedIn caches Open Graph data aggressively β€” sometimes for up to 7 days. After making changes to your OG tags, use the LinkedIn Post Inspector (linkedin.com/post-inspector/) to force LinkedIn to re-scrape your page. Always run our og image checker after making changes to confirm the new tags are correctly output by your server before forcing a cache refresh.

Check Your Open Graph Tags Free

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