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Robots.txt Auditor - local crawl rule checker

Check robots.txt for user-agent groups, allow and disallow rules, sitemap declarations, crawl-delay, and unsupported directives.

  • Runs locally
  • Category Developer & DevOps
  • Best for Formatting, validating, shrinking, or inspecting code-adjacent text.
Runs locally in your browser. Files are not uploaded. Text limit: 8 MB.
Output format
Agents
2
Rules
5
Sitemaps
1
Warnings
2
Warnings
  • 1 crawl-delay directives found; major search engines may ignore them.
  • 1 disallow-all rules found.

What this tool does

Robots.txt Auditor turns a robots.txt file into a readable crawl-control report. Paste the file and it groups user agents, lists allow and disallow rules, extracts sitemap URLs, counts crawl-delay directives, flags disallow-all rules, detects malformed lines, and warns about unsupported directives such as noindex. It is designed for SEO launches, staging-to-production checks, site migrations, CMS template updates, and emergency reviews after traffic drops. The CSV export gives growth and engineering teams the same rule inventory without requiring command-line tooling. Because robots.txt can reveal private staging paths, the tool runs locally and never fetches or uploads your file.

Tool details

Input
Files + Text + Numbers
The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output
Live result + Copy + Download
The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy
Browser-side processing
The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share
Shareable URL state
Key settings are encoded in the URL so another person can reopen the same setup.
Performance budget
Initial JS <= 118 KB
No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit
Developer & DevOps · Marketer
Category and role tags drive related tools, internal links, and quick fit checks.

How to use

  1. 1. Input

    Paste or drop your content into the tool panel.

  2. 2. Process

    Click the button. All processing is local in your browser.

  3. 3. Copy / Download

    Copy the result or download to disk in one click.

How Robots.txt Auditor fits into your work

Use it in the small gaps between coding, reviewing, debugging, and shipping.

Developer jobs

  • Formatting, validating, shrinking, or inspecting code-adjacent text.
  • Preparing snippets for documentation, tickets, commits, or handoff.
  • Checking a small payload quickly without switching tools.

Developer checks

  • Run irreversible transforms like minify or obfuscate on a copy.
  • Keep secrets out of pasted snippets unless the tool explicitly stays local.
  • Use your normal tests or linter before shipping transformed code.

Good next steps

These links move the current task into a more complete workflow.

  1. 1 Sitemap URL Auditor Paste sitemap XML and audit URL count, HTTP links, duplicates, trailing-slash conflicts, query parameters, lastmod freshness, and extensions. Open
  2. 2 Meta Tag Generator Generate SEO meta tags — title, description, Open Graph, Twitter Card, Schema.org. Open
  3. 3 HTTP Security Header Auditor Audit raw response headers for HSTS, CSP, cookie flags, MIME sniffing, clickjacking, referrer, and permissions policy gaps. Open

Real-world use cases

  • Review a site before launch

    Confirm important sections are not blocked and sitemap declarations are present before publishing.

  • Debug traffic drops

    Compare recent robots.txt changes against crawl control risks after organic traffic falls.

Common pitfalls

  • Blocking staging paths with broad patterns and accidentally shipping the same robots.txt to production.

  • Expecting robots.txt noindex to remove URLs from search results.

Privacy

Robots rules may expose private paths. This auditor works on pasted text locally.

FAQ

Tool combos

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Made by Toolora · 100% client-side · Updated 2026-06-13