Create your first profile

In this tutorial, we will add a request header to requests sent to the current website.

Before you start

• Install Headerly.
• Open a normal HTTP or HTTPS page.
• Open the Headerly popup from the browser toolbar.

Create the rule

1. Create a modifyHeaders profile.

2. Name it Headerly demo.

3. Keep the generated Request domains condition. Confirm that it contains the current site's hostname.

4. In Modify request header, enter:

   • Name: X-Headerly-Demo
   • Value: enabled
   • Operation: Set by default.

5. Keep the profile enabled.

Headerly registers the profile automatically. The active-rule popup badge should change to 1.

Check the result

1. Open the browser's Developer Tools.
2. Select the Network panel.
3. Reload the page.
4. Select a request sent to the configured hostname.
5. Inspect its request headers.

You should see:

X-Headerly-Demo: enabled

If the header is absent, follow Rule not applied.

Remove the change

Pause the profile. Reload the page and confirm that the header is no longer present.

You have created, verified, and paused a complete Headerly profile. Next, see the guides for request headers and conditions.