SerpCrest
Free & open source

Meta / OG / Twitter Card Validator

See exactly how a URL looks when shared on Facebook, LinkedIn, or X, and which Open Graph, Twitter Card, or meta tags are missing.

Useful right before you publish or share something: a missing og:image, or an og:title that's stale in your head but not on the page, is a broken-looking link on every platform it gets shared to.

20
Checks per minute
10s
Fetch timeout
Live
Not cached
0
Signup required
Social preview checkerLive fetch

How it works

1

Enter a URL

Paste the exact page you want to preview. Protocol is optional - we add https:// if you leave it off.

2

We fetch the real page

A live request pulls the actual Open Graph, Twitter Card, and meta tags straight out of that page's HTML. Nothing is guessed or simulated.

3

See the share card and the audit

A visual preview of how the link will look when shared, plus a pass/fail checklist of the tags that matter most and which ones are missing.

Questions

og:title, og:image, and a meta description - most platforms (Facebook, X/Twitter, LinkedIn, Slack, Discord) need these three to render any share card at all. Everything else in the audit is supplementary.

No. Every check is a live fetch of the URL you enter at that moment, so it reflects whatever tags are on the page right now, not a stale snapshot.

Either the page has no og:image (or twitter:image) tag, or the image URL it points to failed to load - both show up as a missing tag in the audit below the preview.

Yes, up to 20 checks per minute, to keep the live fetch from being abused. Wait a minute and try again if you hit that limit.

Most sites show a wide image of about 1200 by 630 pixels. The image converter resizes and compresses a picture to WebP or AVIF; once the new image is live, check the URL here again.

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Run this on every link you own.

SerpCrest re-checks the placements in your projects every week and tells you when one breaks or disappears.