Slack Link Preview Not Working? Common Issues & Fixes

Slack

Common Issues

Troubleshooting the most frequent Slack unfurl problems

The most frequent Slack unfurl problems, each with a detailed fix.

Link Not Unfurling in Slack

Why your URL shows as plain text with no preview

Wrong Image Showing in Slack Unfurl

Why Slack displays an old or incorrect image in the link preview

Slackbot Blocked by Cloudflare

Why Cloudflare's Bot Fight Mode blocks Slack link previews

Additional resources

Unfurl Debugger - Slack Tools

Test a link on Slack

See what Slack sees when your link is shared.

Keep Slack previews fixed

Previews break again after a deploy or a CMS edit. OpenGraph+ monitors every page and keeps them correct on every platform.

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