Both methods help regulate how search engines interact with your website, but they serve different purposes and should not be used interchangeably.
The noindex directive instructs search engines not to include a specific page in search results.
Use noindex when you want a page to be visible to users but not appear in search results. This is useful for pages such as thank-you pages or internal search results—pages that users can see but that you don’t want indexed.

The disallow directive in robots.txt prevents search engine crawlers from accessing specified URLs or patterns. When a page is disallowed, search engines will not scan or index its content.
This directive is best used when you want to completely block a page from search engines, such as sensitive user data or pages irrelevant to search results.
One frequent mistake website owners make is using both noindex and disallow on the same page. This can create issues: if a page is blocked in robots.txt, search engines cannot see the noindex directive in the page’s meta tag or header. As a result, the page may still be indexed with limited information.
To properly prevent a page from appearing in search results, use noindex without restricting the page in robots.txt..
Key Takeaways
- Don’t combine robots.txt disallow with noindex tags.
- Use noindex when you want the page to be crawled but not listed in search results.
- Use robots.txt disallow for pages that should never be crawled.
Understanding the proper use of noindex and disallow directives is essential for SEO success. Following best practices and leveraging available testing tools ensures that your content is indexed and displayed correctly in search results.

