Robots.txt Diff Checker

Compare two robots.txt files and see meaningful directive changes after normalizing whitespace and comments.

Quick samples

Robots.txt comparison

Comments and blank lines are stripped out before the normalized directive diff is calculated.

Fetch a live robots.txt into the baseline textarea before comparing it.

Paste a robots.txt snapshot here, or fetch one into this box from a live URL.

Fetch a live robots.txt into the candidate textarea before comparing it.

Paste the comparison snapshot here, or fetch one into this box from a live URL.

No comparison yet

Paste two robots.txt snapshots, or import robots.txt into either side first, then compare them.

Documentation

Robots.txt Diff Checker

Full Docs

About this tool

Robots.txt Diff Checker compares two robots.txt snapshots after removing comment and whitespace noise. Use it to review crawler-rule changes before deployment.

Inputs and behavior

Paste two robots.txt versions or import from a public site URL or direct robots.txt URL.

The diff focuses on directives such as User-agent, Allow, Disallow, and Sitemap. Comment-only and whitespace-only changes are ignored.

info

Gotchas

Confirm imported content before trusting the comparison. A formatting-only change may disappear from the normalized diff because crawlers ignore it.

tips_and_updates

Key use cases

  • -Compare current and proposed robots.txt files.
  • -Import a live robots.txt file into either side.
  • -Review directive changes during SEO or launch QA.
  • -Share a normalized patch with stakeholders.

FAQ