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What it is

When someone pastes your short link into Slack, LinkedIn, WhatsApp, etc., the platform fetches the URL’s Open Graph tags to render a preview card. linkutm lets you override the OG title, description, and image per link without touching the destination page.

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When to use it

  • Destination doesn’t have OG tags (or has bad ones).
  • You want a campaign-specific preview without changing the page.
  • A/B testing share previews across channels.

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How to use it

1

Open Advanced → Social preview

In the link creation, expand Advanced and find the Social preview section.
2

Set OG fields

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ogTitle
Card headline. Keep ≤60 chars.
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ogDescription
Subline. Keep ≤155 chars.
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ogImage
Public image URL. Recommended 1200×630px PNG/JPG.
Link Preview modal - editable OG title and description fields with social card preview

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Real-world example

Same destination URL, different previews per channel: 
Short:        go.acme.com/launch-li     (LinkedIn)
ogTitle:      Acme Widget - built for engineering teams
ogImage:      https://cdn.acme.com/og/launch-linkedin.png

Short:        go.acme.com/launch-x      (X/Twitter)
ogTitle:      Acme Widget. Now in beta.
ogImage:      https://cdn.acme.com/og/launch-twitter.png
Same destination https://acme.com/launch. Per-link OG drives different share cards.

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Common mistakes

If destination already has correct OG tags, you don’t need this. Override only when you want different cards per link.
LinkedIn and Meta cache OG data. Use their debug tools to flush after changes.
Files over ~5 MB or URLs behind auth won’t render. 1200×630 PNG/JPG, public.

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Edge cases

Imported links auto-fetch OG data from the destination during import (5s timeout). If fetch fails, favicon falls back to Google’s favicon service for the destination domain.