Robots.txt Mistakes That Block Useful Pages

Robots.txt is easy to edit and easy to misunderstand. A single broad rule can stop crawlers from reaching pages, folders or assets that should stay visible. That is why robots changes should be small and checked carefully.

Use the Robots.txt Generator for simple drafts, then compare the result with what belongs in a basic robots.txt file.

Mistake 1: blocking too much

Rules like Disallow: / or broad folder blocks can remove important pages from crawling. Use narrow paths and confirm that public sections are not included by accident.

Mistake 2: using robots.txt for noindex

Robots.txt controls crawling, not indexing in the same way a meta robots tag does. If a page must be removed from search results, a noindex strategy may be more appropriate.

Mistake 3: forgetting assets

Blocking CSS, JavaScript or image folders can make it harder for search engines to understand the page. If you are unsure, test the page after every robots change.