Show Server Headers - HTTP Headers Viewer Tool

Free online tool to show and analyze HTTP server headers in real-time. View request headers sent by your browser and response headers returned by the server.

This tool displays the actual HTTP headers that your browser is sending to the server and the headers the server is sending back. Use this information to understand how your browser communicates with web servers in real-time.

Page Load Information:

Page Loaded At: 07/11/2025, 04:29:00 PM UTC

Request ID: 90kf0a

Request Headers

9

Headers sent by the browser to the server

connection

upgrade

HTTP header

host

xpscommerce.com

HTTP header

accept

*/*

HTTP header

user-agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

HTTP header

accept-encoding

gzip, br, zstd, deflate

HTTP header

x-forwarded-host

xpscommerce.com

HTTP header

x-forwarded-port

3000

HTTP header

x-forwarded-proto

http

HTTP header

x-forwarded-for

::ffff:127.0.0.1

HTTP header

Response Headers

3

Headers sent by the server to the browser

X-Server-Headers-Tool

true

Custom header indicating this response came from the headers tool

X-Response-Time

2025-07-11T16:29:00.205Z

Timestamp when the response was generated

X-Cache-Status

no-cache

Indicates this page is not cached

What are HTTP Headers?

HTTP headers are key-value pairs that are sent with every HTTP request and response. They provide essential information about the request, response, and the data being transferred. Our server headers tool shows you exactly what headers your browser is sending and receiving in real-time.

Common HTTP Headers Explained

Request Headers

  • User-Agent: Identifies your browser and operating system
  • Accept: Tells the server what content types your browser can handle
  • Accept-Language: Indicates your preferred language
  • Referer: Shows the page you came from
  • Cookie: Contains session and tracking information

Response Headers

  • Content-Type: Specifies the type of content being returned
  • Set-Cookie: Sets cookies in your browser
  • Cache-Control: Controls how the content can be cached
  • X-Frame-Options: Security header to prevent clickjacking
  • Content-Security-Policy: Defines content security rules

Why Use a Server Headers Tool?

  • Debugging: Identify issues with web requests and responses
  • Security Analysis: Check if security headers are properly configured
  • Performance Optimization: Analyze caching and compression headers
  • Browser Compatibility: Understand how different browsers send headers
  • API Development: Test and verify API request/response headers

How to Use This HTTP Headers Viewer

  1. Simply load this page to see your current browser's request headers
  2. Click the copy button next to any header to copy its value
  3. Compare headers across different browsers and devices
  4. Use the information for web development and debugging

Frequently Asked Questions

What does "show server headers" mean?

"Show server headers" refers to displaying the HTTP headers that are exchanged between your browser and a web server. This includes both request headers (sent by your browser) and response headers (sent by the server). Our tool shows these headers in real-time.

How do I check HTTP headers?

You can check HTTP headers using our free online tool. Simply visit this page and you'll see all the headers your browser is sending and receiving. You can also use browser developer tools (F12) and look at the Network tab to see headers for specific requests.

What are the most important HTTP headers?

Important headers include User-Agent (browser identification), Content-Type (data format), Cache-Control (caching behavior), Set-Cookie (session management), and security headers like X-Frame-Options and Content-Security-Policy.

Can I see headers from other websites?

Due to browser security restrictions (CORS), you can only see headers from the current website. Our tool shows headers for this page. To see headers from other sites, you would need to use browser developer tools on those specific sites.

Why are HTTP headers important?

HTTP headers are crucial for web communication, security, performance, and functionality. They control caching, authentication, content negotiation, security policies, and much more. Understanding headers helps with web development, debugging, and security analysis.

About HTTP Headers

Request Headers: These are sent by your browser to the web server when making a request. They provide information about the client, the request, and what the client can accept.

Response Headers: These are sent by the web server back to your browser. They provide information about the response, the server, and how the content should be handled.

Note: This tool now displays real headers from your current browser session. The headers are captured when you load this page and show the actual values being sent between your browser and the server.