Visual builder — output is plain robots.txt ready to drop at /robots.txt.
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User-agent: * Disallow: /admin/ Disallow: /private/ Sitemap: https://example.com/sitemap.xml
* matches zero or more chars — Disallow: /*? blocks any URL with a query string$ matches end of URL — Disallow: /*.pdf$ blocks PDFsGoogle has explicitly warned against blocking /assets/ or /static/ — modern crawlers render your page like a browser. Without CSS/JS they may flag your site as broken or non-mobile-friendly.
The robots.txt is built locally in your browser. Nothing is uploaded.