What if, instead of shorter versions, the tool focused on SEO optimization, for example, you enter a business name or idea, and it generates a highly SEO optimized domain name suggestion?

Nothing shorter than dogself.com ?!

IMHO it’s better to just use .com .

By now .com is so popular that anything different is harder to memorize or even seen as untrustworthy (both by users and sometimes by platforms too).

Not goood, says buy to domains that obviously aren't available.

Perhaps in the rush to send people to the affiliate site.

Warning in advance: This website adds a browser history entry for each keystroke, so if you plan on using your history for something, best to steer clear.

Nice! It's called "Domain hack" [1].

[1]: https://en.wikipedia.org/wiki/Domain_hack