Free tool · no signup
Link preview checker
See exactly how your Lovable app looks when someone shares it on Google, X, LinkedIn, Facebook or Slack. We check your share image, favicon and meta tags and tell you what to fix.
Only public pages are read. Results are not stored.
Recommended image sizes
| Asset | Size | Format |
|---|---|---|
| Share image (og:image) | 1200×630 px | PNG or JPG |
| X large card (twitter:image) | 1200×630 px, or reuse og:image | PNG or JPG |
| Favicon | Square, 48×48 px or larger | PNG, ICO or SVG |
| Apple touch icon | 180×180 px | PNG |
Frequently asked questions
- What size should an Open Graph image be?
- 1200×630 pixels (a 1.91:1 ratio) in PNG or JPG. Keep text and logos away from the edges, as some networks crop slightly.
- Why does my Lovable app show the Lovable image when shared?
- New Lovable apps start with default title, description and share image tags in index.html. Replace them with your own and use the full https address of your image.
- I fixed my tags, why does the old preview still show?
- Networks cache previews. Use the Facebook Sharing Debugger or LinkedIn Post Inspector to refresh them.
- Does SaaS Sentinel check this automatically?
- Yes. For every app you monitor, SaaS Sentinel runs these branding and sharing checks daily and flags default text or images.
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