How postcss.org Looks on Slack
71/100
Needs work
2 fixes recommended
postcss.org has the basics in place, with a handful of fixes that would tighten things up. Open Graph, Twitter Card, and a favicon are all wired up. The previews below show exactly how a link to postcss.org looks on Slack.
Slack preview
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Slack
postcss.org
PostCSS - a tool for transforming CSS with JavaScriptTransform CSS with the power of JavaScript. Auto-prefixing, future CSS syntaxes, modules, linting and more are possible with hundreds of PostCSS plugins.

Your social image needs work
Social platforms cannot resolve relative URLs. The image must be an absolute URL starting with https://.
Frequently Asked Questions
postcss.org declares
og:type as article. This tells Slack how to categorize the content when generating a preview.See postcss.org on other platforms
Same domain, different platform-specific report.
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