SQL is fifty years old and shows no sign of going anywhere, but the landscape around it has multiplied. NewSQL, distributed SQL, query engines over object storage, SQL layers on top of non-relational systems, and the whole family of tools offering alternatives to the traditional database.
Altsql names that space. The alt- prefix is doing precise work: it signals adjacency rather than replacement, which is the honest position. Nobody is replacing SQL; plenty of people are building alternatives to specific databases.
It fits a database product, a query engine, a comparison and benchmarking resource, a technical publication, or a consultancy specialising in migrations. The comparison reading is practically useful, since choosing a database is a high-stakes decision made with poor information.
Six characters, .com, no hyphen, and both components are instantly legible to the technical audience. Short technical names are worth disproportionately more because they end up typed in terminals and config files.
Offers considered.