Why This Matters for Search & AI Visibility
If both www and non-www return 200 OK without redirecting, search engines split your PageRank authority and index duplicate URLs across both hosts.
Does My http:// and www Redirect in a Single Hop to https://?
Every domain has four protocol/subdomain variants: http://domain.com, http://www.domain.com, https://domain.com, and https://www.domain.com. Exactly one should return 200 OK as your canonical origin, while the other three should 301 redirect to it in a single hop.
Live Domain Diagnostic
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How to Fix It Permanently
Configure your edge reverse proxy (Caddy, Nginx, or Cloudflare) to 301 redirect both http:// and the non-canonical subdomain directly to your canonical https:// host.