HTTP Header Checker

HTTP Header tool

The HTTP Header tool examines website response headers in real time. This is handy if you have developed a custom header and want to ensure that it exists as intended.

Domain Name is required.
Check the HTTP headers result below
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Frequently Asked Questions

How can we help you?

HTTP headers are used to provide additional information between clients and servers via the request and response headers. All headers are case-insensitive, fields are separated by a colon, and key-value pairs are stored in clear-text string format. An empty field header indicates the end of the header section.

An HTTP header is made up of its case-insensitive name, a colon (:), and its value. Whitespace before and after the value is ignored.

POST, GET, PUT, PATCH, and DELETE are the most regularly used HTTP methods. These methods relate to the operations create, read, update, and delete (or CRUD). There are other alternative approaches, although they are used less commonly.

Content-Type: application/json is just the content header. The content header is just information about the type of returned data, ex::JSON,image(png,jpg,etc..),html. Keep in mind, that JSON in JavaScript is an array or object.
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