Robots.txt Builder & Syntax Validator
Construct and validate clean robots.txt directives for Googlebot, Bingbot, and AI crawlers with path rules, sitemap declarations, and direct file…
How to Use the Robots.txt Builder & Syntax Validator
- 1 Set the default crawler permission (Allow All or Disallow All).
- 2 Choose target User-Agents (* for all, Googlebot, Bingbot, GPTBot, etc.).
- 3 Add protected directory paths to disallow (e.g. /admin/, /checkout/, /api/).
- 4 Provide your XML sitemap URL and download the production robots.txt file.
Methodology & Algorithmic Standards
Formats directives according to RFC 9309 Robots Exclusion Protocol standards, enforcing proper User-agent grouping, Allow/Disallow precedence, and Sitemap absolute URI declarations.
Frequently Asked Questions
Where should the robots.txt file be uploaded? ▼
It must be uploaded directly to the root domain directory (e.g. https://yourdomain.com/robots.txt). Subdirectories cannot host authoritative robots.txt files.
Can robots.txt hide sensitive pages from the public? ▼
No! Robots.txt is a public advisory file that anyone can inspect. For sensitive directories (like admin dashboards), always enforce server side authentication.
How do I block modern AI web crawlers in robots.txt? ▼
Add specific User-agent declarations for bots such as GPTBot, CCBot, or ClaudeBot with Disallow: / to prevent web scrapers from indexing your content.
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