For Slack unfurls

    Slack Link Preview Checker

    Check how your URL unfurls inside Slack messages and channels.

    How Slack unfurls links

    Slack reads Open Graph and Twitter Card tags to render its inline preview. Apps with Slack integrations can also use Block Kit unfurls.

    The preview unfurls once per workspace per URL and is cached for ~30 minutes before Slack re-fetches.

    Common use cases

    Internal launch threads

    Make sure docs and announcements unfurl cleanly when shared in #general.

    Customer success workflows

    Verify shared resources look polished when shared with customers in Slack Connect.

    Marketing posts

    Confirm previews look right before dropping launch links into customer channels.

    Frequently asked questions

    Other Open Graph Preview variants

    Pre-configured variants tuned to specific platforms and use cases.

    For LinkedIn shares

    LinkedIn Link Preview Checker

    See how your URL looks when shared on LinkedIn — before you post.

    Open variant

    For X / Twitter Cards

    X (Twitter) Card Preview Checker

    Preview how your URL renders as a Twitter Card on X.

    Open variant

    For Facebook shares

    Facebook Link Preview Checker

    Inspect how your URL will render in a Facebook post or share.

    Open variant

    For Discord embeds

    Discord Link Preview Checker

    See how Discord embeds your URL inside a channel or DM.

    Open variant
    Back to the full Open Graph Preview

    Get more from your links

    The Slack Link Preview Checker is just the start. Create a free LinkPilot workspace to track every click, manage custom domains, and share securely with your team.

    No credit card required · Free forever plan