Check HTTP Response Headers

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About this tool:

What is HTTP Checker Tool?

Our HTTP Header Checker is primarily designed to show how a web server responds to the client's request. This advanced tool has made it easier for webmasters to monitor, test, and troubleshoot any site’s server. Not only does it highlight the status code, but it also explicitly displays the header response.

There are different HTTP methods, each of which serves a unique purpose and renders a specific header. We can send different types of requests to the server using the headers. Our tool lets you check your web server for all the requests — find out how the server returns a response to GET, POST, HEAD, PUT, or DELETE requests.

It also enables you to modify the header responses, such as specify which user agent you would like to use to send the request.

Additionally, you can carry out a quick HTTP authentication of the web pages that do not allow unauthorized access. Simply enter the credentials, and it will let you verify the authentication mechanism of the given page.

Our HTTP Header Checker is a free ultimate tool that you can leverage to gain valuable insights about a web server and use it to your advantage.

How to Use HTTP Header Response Checker?


You can follow these simple steps to view the server header response of any web page.

STEP 1 - Enter URL

Specify the link to the web page whose server header response you would like to check.

STEP 2 - Configure Advanced Options

Our tool is set by default to check the HTTP response header following the GET method. Moreover, it automatically follows redirects and accept-encoding. You can click on “advanced options” to change the default settings.

Once you go to the advanced options, it enables you to make the following adjustments:

  • Change the HTTP Method
  • Follow Redirects
  • Accept Compressed Content
  • Clone Your User Agent
  • Use HTTP Referrer

You can change between the GET, POST, HEAD, PUT, or DELETE request methods to check the HTTP response.

STEP 3 - HTTP Authentication

If required, then specify the following information to request HTTP authentication of the pages which don’t allow public access without your authorization:

  • Authentication Method (basic, digest, GSS, NTLM)
  • Username
  • Password

STEP 4 - Run the Tool

Click on “Check Now” or press “Enter” to run our HTTP Status Checker.

STEP 5 - Check the Results

Our HTTP Header Checker Tool will take a second to display the “server status code” and “complete header response” as per the instructions.

HTTP — Hypertext Transfer Protocol


The Hypertext transfer protocol (HTTP) facilitates communication and data transmission between clients and servers.

The client can be a computer device or a browser used to access a network resource or service, whereas the server can be a computer device that renders required network resources and services to the client.

You can think of HTTP as a “request-response” system using which the client sends a request to the server, and then the server accordingly sends a response to the client. A user can send different HTTP requests to the server per the requirement.

For example, you wish to visit a website. You will enter the domain name in the URL bar and wait for it to load the respective website, right? Just as you specify the domain name, your browser (the client) will send an HTTP request to the web server so it can execute the required action.

Different status codes help to determine how well a web server responds to user requests. Let’s move ahead to find out the details.

Common HTTP Status Codes


HTTP Status code helps to learn about the server status of a webpage. Usually, the status code of a webpage is 200, which means both the crawlers and users can access it. Anyhow, there can be some occurrences or errors which might change the HTTP status code.

Each of the HTTP status codes has a particular meaning and usage. To understand their purpose and importance, you must know how they work.

Here’s the range of HTTP status codes:

  • Informational - 1xx
  • Successful - 2xx
  • Redirection - 3xx
  • Client Error - 4xx
  • Server Error - 5xx

There are different types of HTTP status codes that fall under each category. Here’s the list of the most common HTTPS status codes:

  • OK - 200

    200 is the status code for success. The 200 status code of a web page is good news as it means that the web page is available for users and search engines.

  • Permanent Redirect - 301

    The 301 is a status code used for permanent redirection. It means that a URL is redirected to the other URL. This way, when the user opens the first URL, it will be redirected to the second one.

    You can use 301 redirects to get all the link juice and traffic from the first URL for the second URL.

  • Temporary Redirect - 302

    The 302 status code is mainly like the 301, but the only difference is that it is used for temporary redirects. It works the same as 301 on opening the first URL. It will redirect you to the other one.Take into account that the 302 redirect doesn't give a website any link juice or permanent traffic. It can only be used when you want to redirect a link for a temporary period.

  • Not Found - 404

    404 status codes indicate that the web page the user is trying to access cannot be accessed or the web page is unavailable.

    It usually happens when the web page is removed or there is a typo error in the URL.

  • Method Not Allowed - 405

    405 status code indicates that although the server recognizes it, the target resource does not support the request method.

    There may be a configuration error that results in a 405 error. Thus, you can locate the incorrect code and replace it with a valid (supported) request method.

  • Not Available - 410

    The 410 status code appears when the origin server no longer offers access to the target resource. It indicates that the requested resource has been permanently removed.

    You can either disable your site’s plugins or repair your site’s .htacess file to troubleshoot the 410 error.

  • Internal Server Error - 500

    The 500 status code indicates an unknown problem with the website’s server. It can be a glitch caused due to broken or corrupted .htacess files.

    It may also occur when a plugin is corrupted or the PHP memory limit is exceeded. Thus, you must inspect it all and then debug the error accordingly.

  • Service Unavailable - 503

    The 503 error indicates that although the server operates appropriately, it cannot complete the user request at the moment. It might occur due to a temporary overload or shutdown.

    Usually, it is not easy to find out why this error occurs and how to fix it. You can simply restart your server, fix firewall configurations, or inspect the website’s code to detect bugs.

    Using our HTTP status code checker, you can quickly check the HTTP status code of any URL. It will provide you with all the significant information about the respective web page’s server status and header responses.

Common HTTP Methods


There are different HTTP methods that a client can use to send various types of requests to the server. Each method serves to create, read, update, replace, or delete resources/operations.

Here’s the list of HTTP methods that are used to send specific requests to the server:

  • GET
  • POST
  • PUT
  • HEAD
  • DELETE
  • PATCH
  • OPTIONS
  • CONNECT
  • TRACE

Using our tool, you can inspect any website’s server for these HTTP request methods. It will take a second to show you how the website’s server responds to the specified request.