How to use
- Fill in: Paste your robots.txt.
- Tap Validate robots.txt.
- Read the result - you can print or save it as PDF.
Worked example
With a file containing User-agent: *, Disallow: /admin/ and one Sitemap line:
ROBOTS.TXT CHECKLooks valid
- User-agent groups: 1
- Allow/Disallow rules: 1
- Sitemap lines: 1
Syntax and common-mistake checks on the pasted file (Google’s documented robots.txt format). It does not test live crawling. Comments (#) were ignored.