# ZIP checker

> Free browser ZIP checker for blank uploaded sites: missing index.html, nested wrapper folder, src instead of dist, filename casing, missing assets. Nothing is uploaded to GeminiLaunch servers.

Canonical: https://www.geminilaunch.com/tools/zip-checker
Last updated: 2026-10-07

## What it finds

- No index.html at the archive root
- Whole site nested inside one wrapper folder
- Source files (src/) instead of a production build (dist/build)
- Filename casing that does not match HTML references
- References to files missing from the archive

Applies to blank pages on Netlify Drop, Vercel drag-and-drop, and similar hosts where the deploy “succeeds” but the URL is white.

## Related

- [Tools hub](https://www.geminilaunch.com/tools)
- [HTML preview](https://www.geminilaunch.com/tools/html-preview)
- [Blank ZIP guide](https://www.geminilaunch.com/blogs/why-uploaded-website-blank-zip)
- [Netlify Drop blank page](https://www.geminilaunch.com/blogs/netlify-drop-blank-page-zip-checker)