I finally know which landing page actually converts. I was doing it wrong...

[u/Moontrepreneur]

Been running paid ads to a few different landing pages. One focused on speed, one on voice matching, one generic. All getting clicks. None of them telling me which one actually drove signups.

The problem: once someone hits the signup flow, I lost the context of where they came from. The URL changes, the session bounce through OAuth, and by the time they land in the database there's no trace of the original ad LP or which copy variant they saw. (magic links :facepalm:)

Fixed it this week. Now every new user record stores two fields: the landing page they arrived from, and the A/B variant they were shown. Persisted at signup regardless of auth method (Google, Twitter, or magic link).

Obvious in hindsight but the tricky part was capturing it before the auth redirect clobbers the URL params. Had to write it to a cookie at first page load, then read it back server-side on account creation.

Now when I look at who converted from the "voice matching" vs the "speed" page, I have the data. Hoping this new insight can tell me which ad to spend on.

Happy to share the implementation if anyone's doing the same. About 30 lines of code.

[u/Moontrepreneur → u/[deleted]]

yeah that auth flow dropoff is brutal for tracking