H001

No site.url: a build has no absolute canonical, og:url or og:image, and a server takes them from the request's Host header.

Fix: Set site.url, or KERF_SITE_URL in the deploy environment.

Status in kerf@0.1.0: reported by kerf check and by kerf routes --meta, per route, on what the routes produce.

More: kerf docs meta.