Robots.txt Generator
Generate a robots.txt file with correct syntax. Block crawlers, set sitemap URL, and configure crawl rules. Free tool.
How Robots.txt Generator Works
Select which crawlers to allow or block, enter your sitemap URL, and the tool generates a correctly formatted robots.txt file. Copy and place it at your domain root (yourdomain.com/robots.txt).
This tool uses industry-standard formulas and calculations to provide accurate results instantly. All calculations happen in your browser — your data never leaves your device, ensuring complete privacy and security.
Whether you're optimizing marketing campaigns, managing finances, or processing data, this tool gives you the precision and speed you need to make informed decisions quickly.
Use Cases
Calculate robots txt generator
Get instant robots txt generator calculations for your seo tools analysis and reporting needs.
Verify Your Results
Double-check your manual calculations and validate your robots txt generator against industry-standard formulas.
Quick Estimates
Make fast estimates and what-if analyses by experimenting with different inputs and seeing instant results.
Export & Share
Calculate results and easily export them for use in spreadsheets, reports, and presentations.
Frequently Asked Questions
What is a robots.txt file?
A robots.txt file is a plain text file placed at your domain root that instructs web crawlers which pages they can or cannot access. It's the first file Googlebot reads when visiting a site. Misconfigurations blocking important pages or the sitemap URL are one of the most common technical SEO mistakes.
Should I block AI crawlers in robots.txt?
Optional — Google's confirmed that blocking AI training crawlers (GPTBot, CCBot, ClaudeBot) has no effect on traditional search rankings. If you don't want your content used for AI training, block them. If you want AI search tools (Perplexity, ChatGPT) to cite your content, don't block them.
Does robots.txt prevent indexing?
No. Robots.txt prevents crawling, not indexing. A page can appear in search results without being crawled if it has external links pointing to it. To prevent indexing, use a noindex meta tag on the page itself — robots.txt alone is not enough.
Is my data stored?
No.
Can I use this on mobile?
Yes.
About This Tool
Built by the Calcyo team and last updated June 2026. All calculations follow industry-standard methodology. No data leaves your browser — calculations run entirely client-side using JavaScript. If you spot an error in the formula or benchmark data, email us at support@calcyo.xyz.