Domain Liveness

Is this business's website still there? Checks the apex AND www, resolves DNS over HTTPS independently of web requests, falls back to plain HTTP, and separates four things a status code conflates: the name does not resolve, the check itself failed, a recognized parked/suspended/for-sale page answers, and the site refuses bots. Read-only. Will not claim a live page belongs to a different business than the one you asked about.

{'type': 'object', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'description': 'A hostname or URL, e.g. example.com or https://www.example.com'}}}