Header Checker Tool

Check the Response code for Your Web Server


About the Header Checker Tool


Use the HTTP Response Code Checker tool to see which response code your web server is returning for a requested URL. This (header checker tool) can provide valuable information on the status of a requested URL. Simply type or paste the URL in the box below, and then click Ninja Check.

Note: There may be more than one response code returned by the HTTP header checker tool if the original URL is redirected to another URL.

The most commonly returned HTTP response codes include the following:

For a comprehensive list of the HTTP status response codes produced by a http response code checker and their definitions, explore the following links:

Note: Using the correct type of URL redirect is very important for search engine optimization (SEO) purposes. Therefore, the use of a http header checker can often prove to be quite invaluable). For detailed information on using URL http response code checker redirects for SEO, see The Ultimate How-To Guide on 301 Redirects blog post.

HTTP Header Checker Response Code Key

100's Informational Responses

200's Successful Responses

300's Redirection Responses

400's Client Failure Responses

500's Server Failure Responses

600's Global Failure Responses
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