I have eleven domains doing nothing. Parked, pointing nowhere, bought for an idea I was never going to build. I suspect that is not unusual in here.
DomainRiff: you give it a domain you already own, and it writes three different futures for it. Not name suggestions, the other direction. Each one is a product idea for that specific domain: what it would be, who it's for, a tagline, and a build prompt you can paste into Claude or Cursor if one of them grabs you. You pick one, prove you own the domain (a DNS TXT record or a file at the root, it checks either), and it turns into a page you can share.
It's free, there is nothing to buy, and it's not a lead magnet for a brokerage. You get a weekly allowance of riffs and it refills.
Rather than describe it, here's one I did on a domain of my own, vibed.win: https://domainriff.app/riff/vibed.win
That page is the actual output, not a mockup: the pitch, who it's for, the build brief, and the logo prompts.
The thing I'm least sure about is the ownership check. It's friction, and it's why people bail halfway through, but without it anyone can riff someone else's domain and I didn't want that. If you try it, tell me if the proof step is where you gave up, and what you'd have accepted instead.
Source: r/microsaas · by /u/Silly-Ad4167