SignalbirdTry every change on your users' twins first.
Signalbird builds a synthetic copy of each of your real users from your own data. Show them a change before anyone real sees it, and get a clear call: ship it, run a small live test, or don't ship. You also see the likely effect, the odds, and who it affects.
Start with your website: no data needed for the first map.
Miners carried a canary underground so they'd learn about danger before it reached them. Signalbird does the same for product changes: your users' twins go first, and you hear the signal before your real users do.
From your website to a decision, in three steps.
Every answer is grounded in what your real users actually did, not in what an AI imagines a "typical user" would do.
Map your site
Enter your website. We visit your public pages like a careful user and map every choice people can make: screens, buttons, steps. Then we suggest the first tests worth running.
Free · a few minutesConnect your data
Give us read-only access to your event data. We build one twin per real user from their own history: what they saw, what they clicked, what they ignored.
Read-only · about 15 minutesDescribe a change
Type it in plain English. The twins try it in hundreds of simulated runs, and you get a verdict, the likely effect with a range, which groups win or lose, and how much to trust it.
Results in minutesStart with the screens people scroll and choose from.
We're honest about what twins can predict well today, and we tell you when a change is outside that.
Feeds, lists and sections
- Reorder a feed, a list or search results
- Remove a section, or feature one at the top
- Show fewer (or more) items per screen
- Add new items, topics or sections
Layouts and journeys
- Layout changes, with before-and-after previews of your real page
- Onboarding, checkout and pricing pages
- Notifications and when people come back
- What your own data can and can't predict, before you test
Synthetic users, checked against real ones.
Scored on real behavior
Twins are tested on weeks of your users' history they never saw: do they pick what real people picked, are their odds honest, and can anyone tell their sessions from real ones?
Clear about uncertainty
Every result comes with a range, a confidence level and an honest "no clear difference" when that's the answer. For a big change we'll tell you to run a small live test first.
Your data stays yours
Read-only access you can revoke any time, kept separate for each company. When we map your site, we follow your robots.txt and never change anything on it.
See your site's decision map today.
Sign up, enter your website, and we'll map every choice your users can make, with the first tests we'd run.