Free tool · no signup

How does your site look when shared?

Paste a URL and see the share-card preview Facebook, LinkedIn, X and Slack render when someone posts your link — the image, headline and summary, exactly as a feed shows them. We read your Open Graph & meta tags and flag the ones that are missing or broken, the quiet reason a link lands as a blank, unclickable card.

Does your link show the right picture and title when shared?

You post your link to Facebook, LinkedIn or your group chat — and instead of a clean card with your image and headline, it shows a blank box, the wrong photo, or just a bare web address. That's a social link preview problem, and it quietly costs you clicks every single day. This free social and link preview checker shows you exactly what your card looks like before you share it, and tells you in plain words what to fix.

What this tool checks

Paste any page from your site and it reads the live page to show you:

• The image your link will show (your og:image) — or a warning if there isn't one.
• The headline and summary people see on the card (your title and description).
• Whether your Open Graph tags (the hidden code that controls Facebook and LinkedIn cards) are present and complete.
• Whether your Twitter Card tags (the same idea, for X) are set up.
• A simple, color-coded list of what's missing or broken — red for "this breaks your card," amber for "this could be better."
• A side-by-side readout of every tag we found, so nothing is a mystery.

Why it matters

Every page you publish is read by three different audiences, and your preview tags speak to all of them:

• Human visitors — a strong card with a clear picture and headline gets far more clicks in a busy feed than a blank box. The card is your first impression.
• Google — your title and meta description become the headline and snippet people see in search results. A compelling one earns more clicks; a vague one gets scrolled past.
• AI assistants — tools like ChatGPT, Gemini and Google's AI summaries lean on clean titles and descriptions to understand and quote your page. Clear tags make you easier to summarize and recommend.

How to read your results

A good result looks like a complete card: your real image, a clear headline, a one-line summary, and an empty (or all-green) "what to fix" list. That means your link will look the way you intend it to wherever it's shared.

A result that needs work shows gaps — a grey "no image" box, "— not set —" next to important tags, or red flags. Red flags break the card outright (most often a missing or unreachable og:image). Amber flags are softer: a title that's too long, or a missing description that makes your card less convincing. Fix the red ones first.

What to fix first

• Add a real image. Set an og:image using a full https web address, ideally 1200 by 630 pixels. This single fix turns a blank card into a clickable one.
• Write a clear title and description. Keep your title around 60 characters and your description between 50 and 160 — long enough to be useful, short enough not to get cut off.
• Cover X too. Add twitter:card set to summary_large_image so your link looks just as good there.
• Force a refresh. Facebook and LinkedIn remember (cache) your old card, so after fixing tags, re-scrape your URL in Facebook's Sharing Debugger and LinkedIn's Post Inspector.

Want the rest of your page checked while you're here? The Core Web Vitals checker measures how fast and steady your page feels, the schema generator builds the hidden code that tells Google and AI what your page is about, and the website checkup gives you a quick all-round health read. Or browse every free tool on the tools hub.

Frequently asked questions

What are Open Graph and meta tags, and why do they matter?

Open Graph (og:) and Twitter Card meta tags are small bits of hidden code that tell Facebook, LinkedIn, X, Slack and iMessage how to show your link when someone shares it — the headline, summary and image on the preview card. If they're missing or broken, your link shows up as a bare web address or a blank card, and a less clickable share means less traffic. Your page title and meta description do the same job for search results, deciding the headline and snippet people see on Google.

What makes a good social share card?

Set og:title, og:description and a full https og:image (ideally 1200×630px), add twitter:card set to summary_large_image, and keep your title around 60 characters and meta description between 50 and 160. The image address must be a full https link — relative or http images are often dropped, leaving a blank card.

Why does my link still show the old picture or title after I changed it?

Facebook, LinkedIn and other platforms remember (cache) what your link looked like the first time it was shared, so edits don't always show up right away. This checker reads your live page, so it shows your current tags immediately. To force the platforms to refresh, paste your URL into Facebook's Sharing Debugger or LinkedIn's Post Inspector and re-scrape.

What size should my social share image be?

1200 by 630 pixels is the safe, widely supported size — it fills the large preview card on Facebook, LinkedIn and X without awkward cropping. Keep important text and faces near the center, and use a clear, high-contrast image. A tiny logo floating in white space looks weak in a busy feed.

Do meta tags affect my Google ranking?

Your title and meta description don't directly raise your ranking, but they decide the headline and snippet people see in search results, which strongly affects whether anyone clicks. A clear, compelling title earns more clicks — and more clicks is a healthy signal. Open Graph tags are mainly for social sharing, not search.

Why does my image not show even though I added og:image?

The usual causes are a relative or http image address (it must be a full https link), an image that's blocked to outside visitors, or a cached old preview. Re-run this checker to confirm the tag is read correctly, make sure the image opens directly in a browser, then force a re-scrape with the platform's official debugger.

Is this preview checker really free?

Yes — free, no signup, one page at a time. If you want every page on your site checked at once — structure, content and AI-readability scored together — run the free AUDXY website audit.