DarnlyOpen Graph checker: see how your link looks when shared
Paste a link to preview it on X, LinkedIn, WhatsApp and Slack, see which share tags are missing, and copy the fix.
What we found
More free tools
How it works
- Paste your page’s public address, for example your home page or a launch post.
- We read the share tags the page gives to apps (Open Graph and Twitter tags) and draw how the link looks on X, LinkedIn, WhatsApp and Slack.
- If something is missing, copy the tags we suggest into your page’s
<head>, or hand them to your AI coding agent. Deploy, then check again.
Questions
What are Open Graph tags?
Small lines in your page’s <head>, like og:title and og:image, that tell apps what title, text and picture to show when someone shares your link.
What size should my share image be?
1200×630 pixels works everywhere. Keep important text away from the edges, because some apps crop the image.
I fixed my tags but the old preview still shows. Why?
Apps keep previews for a while. Our checker keeps results for an hour. LinkedIn and X update when the link is shared again, and you can refresh LinkedIn’s copy with its Post Inspector.
Can I check a page on localhost?
No. Apps can’t see your computer either, so only public addresses work. Deploy first, even to a preview address, then check that.
Do you store the pages I check?
We keep the tags we read for up to an hour so repeat checks are fast. We don’t keep a list of who checked what.