tufa.io is now a parked domain

The address we publish for Tufa — tufa.io — served a domain-parking page (a "this domain is for sale" holding page) when we last checked it, checked 16 Oct 2026. A parking page answers normally, so an uptime check alone would have called this site healthy — the verdict rests on the page's own contents, not on its status code. We have not verified that Tufa still operates anywhere, so anything below that was derived from that address may be out of date. Its viability score is held out of the top band for the same reason.