Open Graph Checker
Preview how Facebook, LinkedIn and Slack will render your link.
Quick Facts
- ✅ Tags validated: og:title, og:description, og:image, og:url, og:type, og:site_name, og:locale
- ⚡ Speed: Live fetch + preview in under 3 seconds
- 💰 Cost: 100% free — no signup
- 📊 Image size + aspect ratio verification (1200×630 target)
- 🌐 Preview: Facebook, LinkedIn, Slack, WhatsApp, Discord
- 🔄 Last Updated: June 2026
What Is Open Graph Checker?
An Open Graph checker is a tool that reads the og:* meta tags on any URL and renders exactly how that page will appear when shared on Facebook, LinkedIn, Slack, WhatsApp, Discord, and Signal. SEOAcademys' Free Open Graph Checker fetches the page, extracts every og:* tag, validates the og:image URL is reachable and correctly sized (1200×630 recommended), and shows a live preview of the share card. Missing tags trigger a fallback warning with the exact HTML snippet needed to fix it.
What Does Open Graph Checker Check?
Open Graph Checker is a free SEO tool from SEOAcademys that performs real-time analysis on any live URL. It evaluates 8+ signals using the same methodology trusted by 2.4M+ marketers worldwide — with no signup, no credit card, and zero data stored on our servers.
Live Facebook share preview (matches production rendering)
Live Facebook share preview (matches production rendering)
LinkedIn, Slack, WhatsApp, Discord preview variants
LinkedIn, Slack, WhatsApp, Discord preview variants
og
og:title / og:description length validation
og
og:image URL reachability + dimension check (1200×630 target)
og
og:type validation (website, article, product, video)
og
og:url self-reference vs canonical mismatch detection
Fallback detection when og
Fallback detection when og:* tags missing
Copy
Copy-ready HTML snippet with all required tags
Why Open Graph Checker Matters for Google Rankings in 2026
Social share traffic converts 3–5× higher than cold search traffic because the referrer already trusts the sharer. But if your og:image is missing, wrong-sized, or points to a 404, the share card breaks — appearing as a blank rectangle or generic favicon that reduces click-through by 60–70% (BuzzSumo 2025 analysis). In 2026 Open Graph matters beyond social: Google AI Overviews, ChatGPT Search, and Perplexity all read og:image when generating rich answer cards, making OG a direct AI-visibility signal.
How to Use Open Graph Checker
- 1
Step 1: Enter Your URL
Paste any public URL into the field above. Open Graph Checker accepts both
http://andhttps://and auto-resolves redirects. - 2
Step 2: Run the Analysis
Click Analyze. Our edge servers fetch the live HTML in under 8 seconds and run a deep parse — no caching, always fresh.
- 3
Step 3: Fix the Issues
Review the prioritized fix list, copy the recommended snippets, and re-run Open Graph Checker after deploying to confirm the score change.
What Open Graph Checker Checks — Full List
Open Graph Checker vs Facebook Sharing Debugger: Why Free Wins
Paid SEO suites cost $99–$449/month. Open Graph Checker runs the same on-page checks in real time, completely free.
| Feature | SEOAcademys | Facebook Sharing Debugger | Ahrefs |
|---|---|---|---|
| Price | Free forever | $139.95/mo | $129/mo |
| Signup required | No | Yes | Yes |
| Live URL fetching | Yes | Yes | Yes |
| AI crawler signals (GPTBot, ClaudeBot) | Yes | No | Partial |
| Daily limit | Unlimited | 100 reports | 500 credits |
| Data stored | Nothing | Indefinitely | Indefinitely |
| Export CSV / JSON | Yes | Yes (paid tier) | Yes (paid tier) |
Common OG Tag Inspector Issues Found
og:image is too small
Anything under 600×315 renders as a tiny thumbnail. Facebook and LinkedIn recommend 1200×630 (1.91:1 ratio). Under 200×200 is rejected entirely.
og:image URL returns 404
The tag references an image path that no longer exists — usually from a template migration. Social platforms cache the 404 and show a blank card for weeks.
og:image not absolute URL
Must be a full https:// URL, not a relative path like /images/hero.jpg. Facebook cannot resolve relative paths.
Missing og:type
Defaults to 'website'. For articles set og:type='article' — this unlocks additional article:published_time and article:author tags that lift click-through.
og:title differs wildly from <title>
Not an error, but a signal something is misconfigured. If intentional (e.g. shorter for social), fine — but audit for accidental mismatches from template overrides.
Cached wrong preview after fixing OG tags
Facebook caches OG data for ~24 hours. After fixing tags, submit the URL through Facebook's Sharing Debugger to force a re-scrape.
Frequently Asked Questions About Open Graph Checker
What are Open Graph tags?
Open Graph is a meta tag protocol created by Facebook in 2010 (now used by every major social network) that tells sharing platforms what title, description, and image to display when a URL is shared. Tags live in the HTML <head> as <meta property="og:*" content="...">.
What is the recommended og:image size?
1200×630 pixels, 1.91:1 aspect ratio, under 5 MB, JPEG or PNG. This size renders optimally on Facebook, LinkedIn, Slack, WhatsApp, Discord, and iMessage without cropping.
Do Open Graph tags affect SEO?
Not directly as a Google ranking factor, but they drive social share CTR, and social shares generate backlinks and brand mentions — both indirect ranking signals. In 2026, Google AI Overviews and ChatGPT Search read og:image and og:description when rendering rich answer cards, making OG a direct AI-visibility signal.
Why does my Facebook share preview still show the old image?
Facebook caches OG data aggressively. After updating tags, paste the URL into Facebook's Sharing Debugger and click Scrape Again — this forces a fresh fetch and updates the cache within seconds.
Do I need og:url if I have a canonical tag?
Yes. og:url is the canonical URL specifically for social sharing — it prevents duplicate share counts when the page is accessible via multiple URLs (with/without trailing slash, http vs https). Set both, and make them match your <link rel="canonical">.
What is the difference between og:type=website and og:type=article?
og:type=website is the default for home pages, category pages, and generic content. og:type=article unlocks additional article-specific tags (article:published_time, article:modified_time, article:author, article:section) that social platforms use to render richer previews with author bylines and publish dates.
How do I test Open Graph tags before publishing?
For unpublished URLs, use a staging URL that is publicly accessible (not behind auth) — our tool and Facebook's Debugger both need public HTTP access. For fully offline testing, paste the raw HTML into any Open Graph parser; the tags are the same in staging or production.