An X-Robots-Tag is an HTTP header directive controlling how search engines index and display non-HTML files, enhancing SEO content management.
What Is an X-Robots-Tag?
The X-Robots-Tag is a powerful HTTP header used to manage search engine indexing for different file types, such as PDFs, images, or videos. Unlike meta robots tags, which are placed in HTML, X-Robots-Tag instructions are sent in server responses, allowing control over non-HTML resources.
Why X-Robots-Tag Matters:
- Index Control – Prevents or allows indexing of specific file types.
- Flexible Usage – Works for PDFs, images, videos, or any file served over HTTP.
- Enhanced Privacy – Blocks sensitive documents from appearing in search results.
- Supports SEO Strategy – Ensures only valuable, relevant files are indexed.
- Server-Side Management – Can be applied globally without editing individual files.
How to Use X-Robots-Tag:
- Set in HTTP Headers – Add directives like
noindex
ornofollow
in the server configuration. - Combine with Robots.txt – Use together for complete indexing control.
- Block Non-HTML Content – Apply to downloadable files you don’t want indexed.
- Test in Search Console – Verify Google respects the directives.
- Monitor Regularly – Keep settings updated as content changes.
Example in Practice:
A company uses X-Robots-Tag to stop search engines from indexing internal training PDFs while allowing public whitepapers to remain discoverable.