ZenovayTools

Open Graph Checker

Validates Open Graph, Twitter Card, and LinkedIn meta tags. Checks og:image reachability, character length compliance, and previews how your URL appears when shared on social media.

How to Use Open Graph Checker

  1. 1Enter the URL you want to check.
  2. 2See all Open Graph, Twitter Card, and meta tags extracted from the page.
  3. 3Review warnings for missing or incorrectly sized images, truncated titles, or missing tags.
  4. 4Fix the flagged issues and re-check to verify your social share previews.
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Frequently Asked Questions

What Open Graph tags does this checker validate?▾
It checks all og: prefixed meta tags (og:title, og:description, og:image, og:type, og:url, og:site_name, og:locale), Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image), meta description, page title, and canonical URL. It also verifies that og:image is actually reachable.
Why is my og:image not showing on Facebook or LinkedIn?▾
Common causes: (1) The image URL returns a 404 or is blocked by your CDN. (2) The image dimensions are wrong — Facebook requires at least 1200×630 pixels. (3) Your site requires login to access the image. (4) Facebook has cached an old version — use the Facebook Sharing Debugger to force a re-scrape. This tool checks image reachability as a first diagnostic step.
What is the recommended og:image size?▾
1200×630 pixels at 1.91:1 aspect ratio is the recommended size for most platforms. Minimum is 200×200 pixels (but displays poorly). LinkedIn prefers 1200×627 pixels. Twitter summary_large_image requires minimum 300×157 pixels. Always use absolute URLs (https://) for og:image, not relative paths.
What is the difference between og:title and the page <title>?▾
The page <title> appears in browser tabs and search engine results. og:title is what social platforms (Facebook, LinkedIn, Slack, iMessage) use when displaying a link preview. They can be different — og:title can be shorter and more social-friendly while the SEO title can be more keyword-optimized.
Do Twitter Cards override Open Graph tags?▾
Twitter/X reads twitter: prefixed tags first, then falls back to og: tags if twitter: tags are missing. So if you have og:image set but not twitter:image, Twitter will use og:image. Setting both explicitly gives you more control, but og: tags alone usually work for Twitter too.
Does og:url need to match my canonical URL?▾
Yes. og:url should be the canonical URL of the page — the same URL in <link rel="canonical">. If they differ, social platforms may index the wrong URL and create duplicate share counts across multiple URL variants (e.g., with/without trailing slash, www vs non-www).
How do I force Facebook to re-scrape my updated Open Graph tags?▾
Facebook caches Open Graph data aggressively. After updating your OG tags, use the Facebook Sharing Debugger at developers.facebook.com/tools/debug — enter your URL and click 'Scrape Again'. LinkedIn has a similar Post Inspector tool. Twitter/X typically re-scrapes automatically within a few hours.