I'm building my own website and for SEO reasons I need to redirect all traffic from www.example to example.

To achieve this, I created a vercel.json file and added it to the root directory of my project with the following content:

{
  "redirects": [
    {
      "source": "/(.*)",
      "has": [
        {
          "type": "host",
          "value": "www.example"
        }
      ],
      "destination": "/$1",
      "statusCode": 301
    }
  ]
}

After deploying this configuration and waiting a few hours, it started working for HTTP traffic: now correctly issues a 301 redirect to .

However, HTTPS requests to still return a 200 status code, serving the site content instead of redirecting. Since most browsers and search engines use HTTPS by default, this is causing serious SEO problems due to duplicate content.

I’ve confirmed this behavior using curl, DevTools, and httpstatus.io. There is no Location header, and the status remains 200.

I’d really appreciate your help in figuring out how to apply the 301 redirect over HTTPS as well. Is there anything else I need to configure, or does this need to be enforced from the infrastructure of the hosting provider?