Developer Tool

HTTP Header Checker

Check HTTP response headers.

Enter a URL above and click Check Headers.

Quick Guide

  1. Step 1: Enter the full URL including https://
  2. Step 2: Click Check Headers to fetch the response
  3. Step 3: Review the status code and all headers in the table

What is HTTP Header Checker?

HTTP Header Checker displays response headers for any URL. See also: cors-checker or security-headers-checker.

How It Works

To use HTTP Header Checker, first enter the full URL including https://. Then, click Check Headers to fetch the response. After that, review the status code and all headers in the table. The result appears instantly in your browser.

Use Cases

Frequently Asked Questions

What is HTTP Header Checker?

HTTP Header Checker displays response headers for any URL. It runs entirely in your browser, with no sign-up and no file uploads.

How do I use HTTP Header Checker?

First, enter the full URL including https://. Then, click Check Headers to fetch the response. Review the status code and all headers in the table.

Is HTTP Header Checker free and private?

Yes - HTTP Header Checker is completely free and requires no account. Everything runs locally in your browser, so your code and data never leave your device.

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