Posting Dude
Free tool

Free Open Graph Checker

See og:title, description, image, and Twitter/X tags, plus approximate card previews. Not an official debugger.

Pasted markup is read in the browser and is not uploaded. A URL uses the pasted HTML instead of a fetch.

What Open Graph is

Open Graph tags tell Facebook, LinkedIn, Slack, and other unfurls which title, description, and image to show when someone pastes your URL. Twitter/X reads twitter:card and will often fall back to og:* tags. They live in the document head as meta elements. They do not change how Google ranks the page.

Paste a public URL, or paste the head markup itself. A URL fetch uses the same SSRF limits as the other tools and does not run JavaScript. Pasted HTML stays in the browser.

A minimal example

This is enough for a large-image card on most platforms. Width and height are optional; when they are present, this checker flags an image advertised under 200px, and notes one under 600px. The file itself is not downloaded.

<head>
  <meta property="og:title" content="Launch notes">
  <meta property="og:description" content="What shipped this month.">
  <meta property="og:image" content="https://example.com/cover.jpg">
  <meta property="og:url" content="https://example.com/launch-notes">
  <meta property="og:type" content="article">
  <meta property="og:site_name" content="Example">
  <meta name="twitter:card" content="summary_large_image">
</head>

What this does not decide

The card previews are labelled approximations. They are not the Facebook Sharing Debugger or the X Card Validator. Platforms cache aggressively and can override a tag with their own scrape, an image crop, or a previously stored title.

Missing og:title is a warn because most unfurls look empty without it. A mismatch with the HTML title is a note: you may want the share title to differ. None of this is a ranking signal for Google Search.

Pair with the meta title checker, the meta description checker, and the on-page SEO checker. The free tools index lists the rest.

Related: Meta title checker, Meta description checker, and On-page SEO checker. The free tools index has the rest.

Questions about Open Graph

Do Open Graph tags help Google rankings?+

No. They control unfurls on social and chat platforms. Google Search uses the title tag, on-page text, and sometimes the meta description. This checker does not predict rankings.

Why doesn’t my live image show in the preview?+

The preview is a layout sketch. It does not fetch og:image, so a broken file still looks like “image URL present.” Use the platform debuggers when you need a live scrape.

What size should og:image be?+

Facebook’s public docs have long used 1200×630 as a large-image habit and 200px as a minimum on the short side. This tool only reads og:image:width and og:image:height if you advertise them. It does not download the file.

Do you store the URL or the HTML I paste?+

No. Pasted markup stays in the browser. A URL fetch is discarded after the tags are read. Private and local addresses are refused.

Why is twitter:card missing a warn?+

X often falls back to Open Graph. Missing twitter:card is a note, not a failure, unless og:title and og:image are also missing.

Done-for-you distribution

Want the pages written and posted for you?

Posting Dude publishes human-written distribution every month. Launch is $249/mo for one product. Studio is $399/mo for up to three products. Both plans publish the same ten editorial articles per project. See live examples of published articles, then compare plans on pricing.