HTTP Header Viewer

When you request a file on the internet, such as a webpage or an image, the server that is hosting the file sends headers to your browser. These headers tell the browser about the file, how the file will be sent, and other information.

This tool will show you what headers are being sent by the server for a specific URL. To use the tool, enter the URL to the webpage, CSS file, image file, or JavaScript file in the box above and click GO.