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LinkedIn Link Preview: Control the Image LinkedIn Shows

By OG Checker Team··9 min read

You finish a blog post, paste the link into a LinkedIn draft, and stare at the card. The image is cropped weird. The title is your page’s <title> tag instead of your headline. Or worse — there’s no image at all, just a grey strip of text that looks unfinished next to everyone else’s posts.

LinkedIn is pickier than it looks. It officially requires four Open Graph tags — including og:url, which most other platforms happily ignore — and it applies image rules that its own help pages document but almost nobody reads. We’ve run hundreds of URLs through our OG Image Checker and the same five LinkedIn failures keep showing up. This guide covers all of them, plus the exact spec, the official refresh tool, and what you can (and can’t) edit after pasting a link.

What LinkedIn reads before it renders your card

When you paste a URL into a post draft, LinkedIn fetches the page and looks for four tags. Its documentation is unusually specific — these aren’t suggestions, they’re listed as required:

Tag What LinkedIn does with it
og:title The card’s headline. Falls back to <title> if missing — usually uglier and longer.
og:description The 1–2 lines of grey text under the title.
og:image The card image. Missing means a text-only card.
og:url The canonical URL LinkedIn associates with the share.

That last row is the one that surprises people. Facebook, X, and WhatsApp will render a card without og:url. LinkedIn’s help center explicitly lists it among the four tags your page “must” have. In practice a missing og:url usually doesn’t blank the card, but it’s the only major platform where the tag is officially mandatory — worth setting while you’re in the head anyway.

Two more behaviors worth knowing:

  • Twitter Card tags do nothing here. twitter:card, twitter:image and friends are ignored entirely. If your site only has Twitter tags, LinkedIn shows a text-only card.
  • Relative image URLs fail silently. og:image must be an absolute URL like https://yoursite.com/og.png — /og.png works in some crawlers, but not reliably in LinkedIn’s.

If you want the full 15-tag audit rather than squinting at view-source, our meta tag checker flags all four LinkedIn-required tags plus the rest of your head in one pass.

LinkedIn’s image rules: the exact numbers

From LinkedIn’s own shareability documentation:

  • Minimum size: 1200×627 pixels. The recommended ratio is 1.91:1. This is why our og image size guide lists 1200×627 as LinkedIn’s official dimension — not the 1200×630 you’ll see quoted on most blogs. The three-pixel difference doesn’t matter visually, but LinkedIn crops 1200×630 images down by 3 pixels, so anything important should sit inside a safe margin.
  • Max file size: 5 MB. Oversized images are dropped — no error, no fallback.
  • The 401-pixel rule. This one is in the official docs but almost never quoted: “Images less than 401 pixels wide display as a thumbnail image.” Your og:image can technically be smaller than 1200px wide and still render — but under 401px you get a tiny thumbnail beside the text instead of a proper card. If your preview looks “small and sad,” this is usually why.
  • Formats: JPG, PNG, GIF. Pick JPG or PNG for reliability; skip GIF for og:image.
  • Absolute HTTPS URLs only.

One more official note that trips up teams behind firewalls or member areas: LinkedIn’s help page warns that even a correctly-tagged image won’t appear if your site “may be blocking” LinkedIn from pulling it — protected directories, aggressive bot filtering, or a robots.txt that disallows crawling will all do it. If tags look right and the card stays blank, that’s the next place to look.

Ordered by how often we see them — the first two account for most of the field.

1. og:image is missing (or relative)

The classic. Your CMS renders og:title and og:description but silently skips the image on some page types — landing pages and tag archives are the usual offenders. Fix:

<meta property="og:image" content="https://yoursite.com/og.png" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="627" />

The width/height tags aren’t required by LinkedIn, but declaring them helps some scrapers skip a round-trip and avoids layout surprises elsewhere.

2. Your image is under 401 pixels wide

You uploaded a 300px-wide screenshot or logo. LinkedIn renders it — as a thumbnail. The card exists, the image is just tiny. Re-export at 1200×627. If you don’t have a design pipeline, our OG image generator has a LinkedIn 1200×627 preset and renders in your browser — no signup, nothing uploaded.

3. The file is over 5 MB

Common with uncompressed PNGs straight from Figma or screenshots. LinkedIn’s limit is 5 MB, and enforcement is silent — the image just doesn’t appear. Compress to a few hundred KB; og:image quality barely suffers above ~200 KB.

4. LinkedIn can’t pull the image

The page is behind a login, a firewall rule is filtering LinkedIn’s crawler, or robots.txt blocks crawling of the image path. LinkedIn’s own documentation flags this case. Test by opening your og:image URL in an incognito window — if it 403s or redirects to a login, you’ve found it.

5. LinkedIn is showing a stale cached version

You fixed the tags, but the draft still shows the old card. LinkedIn caches pages after the first share — third-party guides put the refresh window at roughly a week. You don’t have to wait: that’s exactly what the next section’s tool is for.

How to refresh LinkedIn’s cache: Post Inspector

LinkedIn has the best official debugging tool of any platform we’ve documented — better than what X or WhatsApp offer (which is nothing). It’s called Post Inspector, third-party guides often just call it the LinkedIn debugger, and inspecting a URL doubles as a cache refresh.

  1. Go to linkedin.com/post-inspector (log in first — it requires a LinkedIn session).
  2. Paste your URL and click Inspect.
  3. Read the results: the preview card LinkedIn will render, the Open Graph tags it found, and any missing-data warnings.
  4. That’s it — the act of inspecting re-scrapes your page and replaces the cached preview. Go back to your post draft and re-paste the link.

Run it after every tag change, before you post. Thirty seconds beats discovering the broken card from your comments section.

Post Inspector vs. a multi-platform checker

We built an 8-platform checker, so here’s the honest comparison — each tool wins at different jobs:

LinkedIn Post Inspector OG Image Checker
Refreshes LinkedIn’s cache Yes — the only way that officially works No
Shows LinkedIn’s exact card Yes Yes
Other platforms LinkedIn only X, Facebook, WhatsApp, Discord, Slack, Telegram, Reddit — side by side
Login required Yes (LinkedIn account) No
Tag audit Open Graph basics Full audit: tags, image dimensions, file weight vs. WhatsApp’s ~300 KB limit
Speed for checking 3–4 links One URL at a time One URL, all 8 platforms at once

The workflow we use: check everything here first — all eight cards, tag audit, image weight — then do one final Post Inspector pass on pages we know LinkedIn has cached before. Post Inspector fixes the cache; it won’t tell you that the same image is too heavy for WhatsApp or that your X card ratio is off.

One more multi-page habit worth stealing: when you’re publishing and sharing at volume, previews break for boring reasons — a redirect chain, a page that 404s after a redesign. Run the full URL list through our sitemap validator after any site migration and you’ll catch the broken shares before your audience does.

Can you change the preview image on LinkedIn?

Here’s where LinkedIn annoys people the most, so let’s be precise.

Personal profiles: no. LinkedIn removed the ability to upload a custom thumbnail for link posts years ago, and it hasn’t come back. The image in your link post is your og:image — the only way to change it is to change the tag on the page and refresh the cache with Post Inspector.

Company Pages: yes. Page admins get a composer that link posts don’t: click the image icon below the text box to upload your own picture, and “Edit article title” to override the headline. If you’re publishing from a company Page, you can ignore your og:image for a given post entirely.

The workaround everyone uses: upload the image as a regular photo post and put the link in the caption or first comment. This gives you full visual control and historically gets better reach — LinkedIn, like every network, deprioritizes outbound links, and photo-plus-comment has become the standard indie playbook for launch posts. The tradeoff is you lose the preview card’s link-preview affordance, and comment links get fewer clicks than in-post links. Test with your audience.

If your og:image is the problem, the fastest fix is a new one: pick a template from our generator, glance at 26 real examples from brands like Stripe and The Verge in the inspiration gallery, and export a compliant 1200×627 in about the time it took to read this paragraph.

Check your LinkedIn card before you post

The five-minute pre-publish routine:

  1. Audit the head — all four LinkedIn-required tags present, absolute URLs: meta tag checker.
  2. Preview the card — LinkedIn tab plus the other seven platforms, side by side: OG Image Checker.
  3. Mind the specs — 1200×627 or larger, 1.91:1, under 5 MB, wider than 401px.
  4. If LinkedIn has cached an old version — one Post Inspector pass to refresh.

Blank and broken previews are silent failures — LinkedIn won’t email you about them. Thirty seconds with a checker before you hit post is the entire defense. Want the deeper background on how these tags work across platforms? Read what Open Graph is and how the protocol works next.

FAQ

The five causes that account for nearly every case: og:image is missing or uses a relative URL, the image is narrower than 401 pixels (LinkedIn then shows only a small thumbnail), the file is over 5 MB, LinkedIn’s crawler is blocked from pulling the image, or LinkedIn is serving a stale cached version of your page. Audit all five with a free OG image checker, then refresh the cache with LinkedIn’s Post Inspector.

What is the correct og image size for LinkedIn?

LinkedIn’s official spec requires a minimum of 1200×627 pixels, a 1.91:1 aspect ratio, and a file size under 5 MB. Images wider than 1200 pixels still work, but anything narrower than 401 pixels wide is rendered as a small thumbnail instead of a full preview card. 1200×627 is the safe default — Facebook’s 1200×630 is close enough that one image usually serves both.

Open LinkedIn’s Post Inspector at linkedin.com/post-inspector, paste your URL, and click Inspect. Inspecting a URL re-scrapes your page and replaces LinkedIn’s cached preview. You need to be logged in to LinkedIn for the tool to work. Third-party guides report the cache otherwise lasts around a week.

Not from a personal profile. LinkedIn removed custom thumbnail uploads for link posts years ago, so your post uses whatever the page’s og:image tag points to. Company Pages still can: the post composer lets Page admins click an image icon to upload their own picture and edit the article title. The workaround for personal accounts is uploading the image as a photo post with the link in the caption.

Does LinkedIn use Open Graph tags or Twitter Card tags?

Open Graph only. LinkedIn’s own documentation lists four required tags — og:title, og:image, og:description and og:url — and it ignores twitter:card tags entirely. LinkedIn is also the only major platform that officially lists og:url as required, so a missing og:url that every other network tolerates can still degrade your LinkedIn card.

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