HTTP Header Checker

HTTP Header Checker

Parse and inspect raw HTTP headers with duplicate detection and security header checks.

Header Report

About the HTTP Header Checker Online Free Tool

The HTTP Header Checker Online Free Tool allows users to analyze HTTP response headers, helping to ensure optimal configuration for caching, security, and search engine indexing.

When to Use This Tool

  • When you need to verify if your server is sending the correct headers for caching.
  • To check security headers for potential vulnerabilities.
  • Before deploying changes to ensure the new configurations are applied correctly.
  • To troubleshoot issues related to SEO and indexing by analyzing robots.txt and other directives.

How to Use the HTTP Header Checker Online Free Tool

  1. Paste the raw HTTP headers you wish to analyze.
  2. Click the button to review the status code and headers.
  3. Examine the output for cache-control, content-type, robots, and security headers.
  4. If changes are made to the server or CDN settings, retest to confirm the adjustments are effective.

Frequently Asked Questions

Is my data safe when using this tool?
Yes, the tool runs locally in your browser, meaning your data and the URLs checked are not sent to any external servers.

How accurate are the results?
The results reflect the HTTP headers returned by the server at the time of your request; however, they should be verified directly on the live site after changes.

Can I use this tool for any website?
Yes, you can check any publicly accessible URL. However, for private or restricted sites, ensure you have the appropriate permissions.

What if I encounter errors during the check?
Common errors may indicate misconfigurations on the server side. Review the status codes and corresponding headers for troubleshooting.