{{ curlCommand }}
{{ error }}
Fetching…
Compression:
Status Code: {{ status_code }}
Time: {{ total_time }} s
HeaderValue
{{ k }}{{ v }}
 
{{ raw_header }}

            

        


    



                

                

                    

                        

                            Categories:
                                                            
                                    HTTP
                                
                                ,                                                             
                                    Networking
                                
                                                                                    

                        

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An HTTP response header is a name‑value pair sent with every server reply. It carries status codes, content types, cache directives, cookies, and security flags. These values tell browsers and proxies how to treat the payload. Grasping these headers lets you confirm behaviour, troubleshoot delivery paths, harden security settings, and meet regulatory compliance.

  
The HTTP Header Checker tool displays raw and formatted response headers for any reachable URL you provide. It builds a ready‑to‑run cURL command, follows redirects, honours optional referer and custom request headers, and times the transaction. You gain immediate insight without browser extensions, packet captures, or unfamiliar command‑line switches. Select either HEAD or GET methods to fine‑tune calls.

  
Use the checker to validate cache and security directives before deploying changes. Compare gzip and Brotli headers. Share a single pasted cURL snippet with teammates. Rapid feedback shortens deployment cycles, confirms redirect chains, and uncovers misconfigured proxies. Because everything runs in the browser, you avoid installing extra software or exposing credentials.






  
Technical Details:

  
Review the core capabilities and configurable parameters.

  
    
    
  • Supports HEAD and GET requests for flexible inspection.
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  • Accepts referer and custom X‑Pull headers.
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  • Offers gzip and Brotli compression flags for comparison.
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  • Follows redirect chains when enabled.
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  • Generates a copy‑ready cURL command reflecting your inputs.
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  • Displays status code and total transfer time.
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  • Presents headers in sortable table, raw text, and colour‑coded JSON views.
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  • Uses a client‑side timeout to avoid hanging requests.
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Step‑by‑Step Guide:

  
Follow these steps to analyse a response header.

  
    
    
  1. Paste the target address into the URL field. Tip
    2. 
    
  2. (Optional) Enter a Referer or X‑Pull value to simulate specific client headers.
    3. 
    
  3. Select HEAD or GET in the Method menu.
    4. 
    
  4. Tick Gzip and/or Brotli to request compressed content.
    5. 
    
  5. Enable Follow Redirects when you need final destination headers.
    6. 
    
  6. Adjust the Timeout value, then press Check.
    7. 
    
  7. Read the cURL command, status code, and timing summary shown above the tabs.
    8. 
    
  8. Switch between Table, Raw Header, and Raw JSON tabs to examine results or copy the command.
    9. 
  






  
FAQ:

  
Find quick answers to common questions.


  

    Why do I sometimes see multiple status codes?
    
Each redirect adds a response to the chain. The tool shows the final status code and keeps earlier hops in the raw JSON view.

  


  

    Which method should I choose—HEAD or GET?
    
Use HEAD to fetch headers only and avoid data transfer. Use GET when the server treats HEAD differently or you need to test content negotiation.

  


  

    Does the tool store any of my input?
    
No. Inputs remain in your browser session. The external request leaves only the target URL and opt‑in headers.

  


  

    How is compression handled?
    
Checking a compression option appends --compressed to the cURL command and sets the corresponding Accept‑Encoding header, letting you confirm server support.

  


  

    What causes a “Request failed” error?
    
Network timeouts, CORS restrictions, or unreachable domains prevent the fetch. Increase the timeout or verify the URL before retrying.

  


    


            

            

                

                    
Embed this tool into your website using the following
                        code: