We couldn't settle whether XHTML's website (xhtml.es) still works when we checked it on 1 January 2000.
XHTML – Expert HTML was posted to Show HN on 2026-09-24, at xhtml.es. We could not settle this either way.
We don't know from this record whether the product still operates, what it charged, or, if it's gone, why. Across the whole register, 22% of launches whose status we could settle are gone.
What the check recorded: unverified (awaiting first check), at https://xhtml.es/.
The original Show HN post · Report a correction — a domain can vanish while a product moves or rebrands, and stay up after it shuts down.
The launches closest to XHTML in meaning, each with its own status. Not checked by hand.
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How we know. Show HN and Product Hunt entries are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it has shut down. An HTTP error is not counted as gone — a server that answers 404 is one somebody still pays for. Y Combinator entries use the status YC itself publishes (active, inactive, acquired or public), which is why only those can say acquired or public. Search the whole register.