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This service lets you add a single character to Hacker News links to add social media and OpenGraph previews for sharing on things like Slack or Discord or Twitter or Teams. Read more about it in the Hacker News announcement here.

Slack App

Install the Slack application to automatically get previews (unfurls) for links.

Add to Slack

It looks like this:

screenshot of Slack integration

Discord / Twitter / Manual Usage

Simply add a 1 to your Hacker News link, such as, and you'll see a rich preview instead of a plain URL.

On Slack you'll see:

CleanShot 2022-02-01 at 22 54 11@2x

...or for a comment:

CleanShot 2022-02-01 at 22 54 35@2x

On Discord you'll see:

CleanShot 2022-02-01 at 22 55 21@2x

On Twitter you'll see:

CleanShot 2022-02-01 at 22 56 06@2x


Powered by Vercel and the Hacker News API. Source on GitHub


For the redirect service, I don't store logs of requested links other than keeping some basic site usage statistics using my lightweight Femtostats analytics project. For the Slack app, I may occasionally view the Vercel function logs to debug something, but those aren't stored permanently and must be viewed live. Other than that, I only store Slack API bot tokens on S3.