Three characters on the .net, in the letter-digit-letter shape. The S3 opening carries an immediate association with object storage for anyone who works in cloud infrastructure, which gives this one a specific technical home.
That suits a storage tool, a backup service, a data transfer utility, a CLI product, or an API host. Developer tools benefit disproportionately from short domains, because the name ends up typed into terminals, config files, and documentation constantly, and every character is friction repeated thousands of times.
The .net is native for this kind of product. No infrastructure buyer has ever discounted a service for not being on .com, and the extension reads as network and technical, which is what the buyer is.
Outside the technical reading, it’s simply three characters, which is the shortest length that stays memorable, on a set that has been fully allocated for decades.
Clean, fast to type, listed now. Offers welcome.